List of Ben 10: Alien Force episodes

This is a list of episodes in the American animated television series Ben 10: Alien Force.

Episodes

Season 1 (2008)

No. overall	No. in season	Title	Directed by	Written by	Original air date	Prod. code
1	1	"Ben 10 Returns, Part One"	Dan Riba	Dwayne McDuffie	April 18, 2008	101
After setting aside the Omnitrix some years ago, fifteen-year-old Ben Tennyson is enjoying a normal life. After winning a soccer game and meeting a girl named Julie, he visits Grandpa Max only to discover that he's disappeared. Inside Max's RV, the Rust-bucket, Ben finds a Holo-viewer with a recording from Max telling Ben that he has the Omnitrix and he's safe. However, Ben has had the Omnitrix ever since he took it off years ago. He asks his favorite, fifteen-year-old cousin Gwen for advice, wondering if Grandpa wants him to wear the Omnitrix again. Soon, they meet Magister Labrid, an agent of the Plumbers. Stating that he's Max's partner in a case he was working on, Ben and Gwen decide to team up with him. Ben decides to put the Omnitrix back on. The first place they go is to a train station where an arms trade between the Forever Knights and the DNAliens, brokered by Kevin Levin. They attempt to arrest the Knights and the aliens, and a battle follows. When Ben tries to dial in his alien on his Omnitrix, the device reboots and recalibrates into a thin watch with a color scheme of green and black, making it more stylish and giving him access to 10 new aliens which are more powerful than his aliens he had before. The DNAliens get away, the Forever Knights escape with one of the weapons crates, and Kevin is captured. The Plumber asks Kevin for help in finding the Knights' hideout. Kevin, having not been paid (so he says), leads the group to a large castle. Inside, they find all sorts of medieval artifacts, but Ben accidentally knocks over a suit of armor which awakens a robotic dragon. Omnitrix alien debuts: Swampfire (official debut)
2	2	"Ben 10 Returns, Part Two"	Butch Lukic	Dwayne McDuffie	April 18, 2008	102
Fleeing from the dragon, the group runs into an army of Forever Knights. In the ensuing confrontation, Magister Labrid is killed when he saves Kevin's life, and Kevin joins Ben and Gwen on their search for Max to repay that debt. Using a leftover Laser Lance, Gwen is able to trace it back to its original owners. The soon find a secret underground base, they discover an army of DNAliens. Sneaking in, the find that Max isn't there anymore, and on their way out encounter the Highbreed in charge of the ship. Annoyed at being discovered, the Highbreed commander defeats the team, and orders the termination of all life within a five-mile radius to eliminate any witnesses. Using Humongousaur, Ben is successful in his efforts to stop the commander, he learns that any damage he receives while transformed is inflicted upon his human form as well. Deciding to finish Max's last mission, Ben, Gwen, and Kevin become a team. But, according to another Highbreed deep inside another base, they have no idea what they're up against. Omnitrix alien debuts: Echo Echo (official debut), Humungousaur (official debut)
3	3	"Everybody Talks About the Weather"	Dan Riba	Dwayne McDuffie	April 26, 2008	103
The authorities of a local town named Grover's Mill arrest a half-human, half-Pyronite boy named Alan for arson and criminal damage. Alan is wearing a Plumber's badge, which the local sheriff triggers when he confiscates it. The badge signals Kevin's badge, which leads Ben, Kevin and Gwen to Alan, thinking Alan's badge is Max's. Elsewhere, Alan uses his pyrokinetic/thermokinetic abilities to escape the officers, and the resulting damage to a building leads the team to believe that Alan may have hurt Grandpa Max. After a battle with Alan, Ben discovers that the DNAliens are responsible for the damage, having built a huge, needle-like weather machine in the corn fields. With Alan's help, Ben destroys the machine, and afterwards Ben offers Alan to come with him, Gwen and Kevin. Alan decides to stay to clean up any DNAlien trouble that might still be in town, but offers to aid them whenever they need it. Omnitrix alien debuts: Jetray (official debut)
4	4	"Kevin's Big Score"	Butch Lukic	Matt Wayne	May 3, 2008	104
Kevin meets with an old friend of his named Argit, who claims he knows the location of a particular piece of alien tech Kevin is looking for. Needing something to bargain with, Kevin steals Max's RV, the Rustbucket. Unfortunately, upon seeing the huge amount of Plumber's tech and weapons in the old RV, Argit double crosses Kevin, and steals the RV for himself, planning to pay off his old debts. With Ben automatically suspecting the worst in Kevin, the team follows Argit with a tracking device that Kevin hid on the Rustbucket's under carriage. They find the RV, but it has been completely stripped for parts. Infuriated, Ben almost picks a fight with Kevin, but then Argit comes back. Using Echo Echo, the team is able to stop Argit. Still determined to get that piece of alien tech, Kevin storms away to seek out Vulkanus, having been told by Argit earlier he is in possession of the alien device. Kevin tries to make a deal with Vulkanus, but the later is still bitter over a double cross that Kevin pulled on him years ago. Vulkanus forces Kevin absorb a rare alien crystal called Taedenite, planning to use him as a living gem mine. He is rescued by Ben and Gwen and afterward, it is revealed that the item Kevin sought is a holo-viewer with another message from Grandpa Max, telling Ben that he will need to recruit a team of Plumber's kids. Omnitrix Alien debuts: Big Chill (official debut)
5	5	"All That Glitters"	Dan Riba	Bob Goodman	May 10, 2008	105
Ben, Gwen, and Kevin set out on their mission to locate the other Plumber's children to recruit new members for their team. The first one they encounter is a young man named Michael Morningstar. Since Michael has all the Plumber's gear of his late father, as well as the fact that he seems to have been helping his city using his yellow-colored energy-controlling abilities, Ben and Gwen are quick to trust him. Kevin, however, remains suspicious (partly because of Gwen's romantic attraction to Michael). Seeing a reading on Michael's computers that there's a massive power draw at a local power plant, the team plus Michael decides to act. Finding a group of zombified school girls at the plant, the team engages in a short battle, and Michael "accidentally" lets them escape. Michael asks Gwen to dinner. Ben tries to stop him, but Kevin uses the opportunity to break into Michael's house to see if his suspicions are valid. As it turns out, Michael is making the zombies, draining the schoolgirls of their vital life-force energy and then commanding them to collect more strength for him. Fearing for Gwen's safety, they unfortunately arrive to help her too late. Michael drains Gwen's own magical abilities and becomes nearly unstoppable. With Ben and Kevin knocked out, Gwen saves the day by fighting back and comes to her senses by reabsorbing her abilities. Weakened and drained, Michael is then attacked by the school girls, leaving him withered and powerless. Omnitrix alien debuts: Chromostone (official debut)
6	6	"Max Out"	Butch Lukic	Jim Krieg	May 17, 2008	107
Gwen's older brother, Ken, is missing and Gwen asks for Ben and Kevin's help to find him. In their search, the gang stumbles upon a Highbreed base in a small town called Santa Mira that manufactures Xenocytes: headcrab-like parasites that mutate humans into DNAliens. Ken has been infected by one of the Xenocytes, but Ben is able to remove it with the help of the voice-automated Omnitrix. With Ken in tow, the gang finds Grandpa Max inside the base. He explains that the Xenocyte eggs will be shipped across the country, and asks the gang to destroy them. While they comply, he sets about destroying the factory while searching for the egg-laying machine. The gang finds Max locked in battle with a Highbreed Commander upon their return. In an act of self-sacrifice, Max uses an unfocused Null Void warp projector to destroy the Highbreed base. With his last words, he tells Ben to "Take it from here". Then everything and everyone, except Ben, Gwen, Kevin and Ken, is sent to the Null Void. In the aftermath, a group of disguised DNAliens are shown gathering surviving Xenocytes from the wreckage of the base.
7	7	"Pier Pressure"	Dan Riba	Len Uhley	May 31, 2008	106
The team is at one of Julie's tennis matches. Gwen tells Ben to ask Julie to go on a date with him to a local boardwalk amusement park the Pier, and after an awkward attempt by Ben to ask her, Julie agrees, and they go. Elsewhere, out in the forest, a small dog-like Galvanic Mechomorph seeps out of a crashed spaceship. Seeking a plumber's badge signature, the Mechomorph soon finds Ben and starts taking control of the rides to get Ben's attention. After a few failed attempts, the alien than uses a ride to kidnap Julie. Flying after the alien as Jetray, Ben tracks the alien to the ship. In the process, Julie finds out about the Omnitrix. Ben expects her to be freaked out, but Julie, however, finds Ben's secret very impressive, and even cool. The alien starts repeating the word "Ship", referring to the crashed space vessel. Deciding to call the alien Ship, Ben and Julie soon realize that what they though was a piece of the ships computer is in fact a bomb about to blow. Using Humungousaur to throw the bomb into space, they soon free the ship's wounded owner, Baz-El from the wreckage and help him fix his ship. Seeing how he has no use for Ship, Baz-El decides to leave Ship with Ben. It's dawn as Ben and Julie walk home. Ship chases a truck. Ben and Julie hold hands. Omnitrix alien debuts: Brainstorm (official debut)
8	8	"What Are Little Girls Made of?"	Butch Lukic	Matt Wayne	June 7, 2008	109
While Ben, Gwen, and Kevin are taking a break at Grandpa Max's favorite fishing spot, they see a mysterious cloaked woman leave a flower made of pure mana energy at the base of Max's favorite tree. When the team tries to meet her, she disappears. They decide to stake out the area for a while until the woman shows up again. The wait for three whole nights, and their patience is rewarded. The woman shows up, and is able to beat both Ben and Kevin in battle with ease. However, when she sees Gwen use her powers, she is amazed. As it turns out, Gwen's magical powers are in fact inherited from the strange woman, who turns out to be Ben and Gwen's long-lost paternal grandmother, Verdona, who is an immensely powerful energy being called an Anodite from the planet Anodyne. After getting the full story from Gwen's parents, Verdona offers to take Gwen back to her home planet, Anodyne, where she can learn how to reach the full and maximum of all of her magical and life energy-controlling abilities (which would require seventy-five years). Gwen tells Verdona that she cannot leave her friends, not while the Earth is in such danger. Verdona then transforms into her true Anodite form, and decides to destroy Gwen's human body, thus releasing the inner Anodite within. After a short battle, Gwen firmly tells Verdona that she wants to stay on Earth and stay the way she is, saying that it's what Max would have wanted. Verdona accepts this and leaves, though she promises to check up on Gwen once in a while to see how she is doing. Omnitrix alien debuts: Spidermonkey (official debut)
9	9	"The Gauntlet"	Dan Riba	Rob Hoegee	June 14, 2008	110
The team faces off against a Techadon robot seemingly intent on destroying them. Using the new alien Goop, Ben is able to make the robot explode. Kevin grabs the severed hand of the robot (possibly planning to put its defense mechanisms in his car). Later, the team goes to Mr. Smoothie's for a break. Two bullies named Cash and JT, who used to pick on Ben when he was 10, decide to embarrass Ben by spilling smoothie on him. Ben, however, stands up to them, and makes a point to the other people at the smoothy shop pointing out how pathetic JT and Cash really are. Later that night, they see Kevin's car outside a restaurant, and decide to wreck it for retribution. They push it down a hill, smashing the trunk open. The grab the Techadon gauntlet before the car's alarm attracts Kevin. Back at their hang out, and abandoned mannequin factory, Cash puts the gauntlet on, planning on using its built-in laser blaster to destroy Ben once and for all and repair their reputation. Over time, the full robot armor begins to reform around Cash's body. Worried about his friend, JT goes to Ben's team for help. Kevin wants to go it alone as revenge for his car, but is soon defeated by the now immensely powered Cash. Seeking Ben out, a battle at Mr. Smoothie's rages between Ben as Chromastone and the almost fully restored Techadon. In the end, Cash is able to force the robot back into the gauntlet and restore control over his own body. Ben is able to overpower Cash as Chromastone, and JT manages to convince Cash to fight the Techadon's influence, reverting it back into the gauntlet. JT thanks Ben, and takes Cash back home, with Gwen and Ben forgetting about a beat up Kevin still being in the mannequin factory. Omnitrix alien debuts: Goop (official debut)
10	10	"Paradox"	Butch Lukic	Jim Krieg	July 5, 2008	112
The team gets word of a strange creature roaming around an abandoned desert town named Los Soledad outside of Bellwood. The creature seems to be aging everything it touches at an accelerated rate. While Ben, Gwen, and Kevin investigate, see a strange man who seems to be able to disappear at will. After trying to fight him, the team soon formally meet the man known as Paradox, a scientist from the 1950s who was sucked into the event horizon of his time-travel experiment. Displaced from time and space, Paradox has existed for 100,000 years and is able to move through time at will. However, the same mistake that rendered him ageless created the creature they seek. The team is chased by the creature. It ages Kevin's car to dust, and even turns Kevin himself into an elderly man. After Paradox reverses Kevin's age, Ben realizes that the creature is not acting like a monster, but a confused person, going to phone booths and libraries, as though it was looking for information. Ben has Paradox take them back to the day of the time travel accident. The creature turns out to be Paradox's assistant, Hugo, who was also sucked into the event horizon. But instead of going through the same thing as Paradox, Hugo was turned into the aging creature and sent to the modern time. There, as Humungousaur, Ben rescues Hugo, nullifying the creature's existence. In the present, the now old Hugo joins Paradox in exploring time and space.
11	11	"Be-Knighted"	Dan Riba	Stan Berkowitz	July 12, 2008	108
Kevin has arranged a meeting for Ben with the Forever Knights, who need help in slaying a dragon they have kept captive underneath their castle for 1,000 years. Slaying the dragon is the very reason their organization exists. After teaming up with the Knight's mightiest warrior, Sir Connor, in a failed attempt to destroy the dragon, Ben notices that the dragon appears to be trying to communicate. Using Humungousaur to scare information out of one of the Knights, the team leaves the Knights behind and tracks the dragon to a warehouse where its spaceship is being held. Ben as Spidermonkey fits the dragon with a universal translator so it can speak, and it reveals that he is an alien mapmaker, but was captured by the Forever Knights. Angry after a millennium of imprisonment, the dragon arms itself to fight back. Ben convinces it to leave peacefully. Though the Knights believe to have lost their purpose, the news that a world full of dragons exists renews their pledge, as does their need to exact revenge on those who allowed it to return home.
12	12	"Plumbers' Helpers"	Dan Riba	Len Uhley	July 19, 2008	111
A pair of rogue half-human plumbers' kids, a female human-Kineceleran named Helen and a male human-Tetramand named Manny, have been attacking stray DNAliens and all other aliens they can find, and sucking them into a Null Void projector, believing it to have vaporized them. Believing that the team is DNAliens in disguise, they kidnap Kevin, intending to use him as bait for Gwen and Ben. After his rescue, the two sides work things out. After looking at a database of the aliens they captured and put into the Null Void, Ben realizes that some of them may have been Plumbers' kids. To make things right, the duo set out into the Null Void to rescue those they wrongfully imprisoned.
13	13	"X = Ben + 2"	Butch Lukic	Matt Wayne	August 31, 2008	113
The Incursion Emperor Milleous's daughter Attea is kidnapped by a bounty hunter named SevenSeven (Brother of SixSix). Unless she is returned, Milleous plans to destroy the Earth. The Emperor's majordomo, Raff, seeks out Kevin to help on the search. Using Gwen's powers to track her, they teleport to a nearby dam to rescue her. In the assuring battle, the Dam is broken, flooding everything. Having no other choice, Ben uses the untested Alien X to try to fix the dam. The task proves simple thanks to Alien X's vastly strong reality-warping capabilities, but Attea is yet again captured by SevenSeven. Even worse, Ben finds himself locked in endless debate with the other two separate personalities, Bellicus and Serena, inside the alien, unable to move or transform back without their consent. When all of them are teleported onto Milleous' ship, Kevin and Gwen have to protect Ben while trying to save the Earth from the double-crossing Attea who has used Sevenseven to help take over her father's empire. Seeing that Gwen and Kevin have been captured, and that the Earth is only seconds away from being destroyed, Ben finally grows tired of the fruitless debate and demands to be transformed into another alien which can actually get the job done. He manages to save the Earth as Swampfire, but resolves never to use Alien X again as its godly, omnipotent abilities are not worth the price. Omnitrix alien debuts: Alien X (official debut)

Season 2 (2008–09)

No. overall	No. in season	Title	Directed by	Written by	Original air date	Prod. code
1	14	"Darkstar Rising"	Dan Riba	Dwayne McDuffie	October 10, 2008	201
After a Plumber setup to find out if the team has been masquerading as Plumbers, Ben, Gwen and Kevin are forbidden to fight against the Highbreed threat by Plumbers Magister Prior Ghilhil. Ghilhil has doubts the Highbreed are even as much of a threat as they claim. Elsewhere, a mysterious powerful new enemy 'employs' a Highbreed to attack the team. Having also tipped off Ghilhil, all three side are captured by the team's old enemy, Michael Morningstar. Now calling himself Darkstar, he captures all but Gwen, who manages to escape during the fight, to feed his ever-hungry energy-draining abilities. With the help of the DNAliens, Gwen frees her friends. All of them finally defeat the Darkstar. As Michael is captured, the Highbreed Lord and the DNAliens manage to escape. In gratitude, Magister Ghilhil makes the team honorary Plumbers so they can defend the Earth legally and help the world.
2	15	"Alone Together"	Butch Lukic	Charlotte Fullerton	October 17, 2008	202
After an accident with a teleporter pod, Ben and a Highbreed officer named Reinrassic III are stranded on a desert planet called Turrawuste that is so inhospitable, it acts only as a routing station for the teleporter. The pair are forced to work together to fend off the dangerous predators on the planet while making their way to the routing station, much to Reinrassic's chagrin. As they make their way across the desert, the two save each other from danger several times from the violent native wildlife, even risking their own lives to do so. Ben tries to explain to the Highbreed that in the end, humans and Highbreed can have peace if they try, as they themselves are proof of that. After days of walking, they reach the teleporter pod. Much to Ben's disappointment, Reinrassic stays behind, having deemed himself contaminated by Ben and thus a risk to the purity of his species.
3	16	"Good Copy, Bad Copy"	Butch Lukic	Joseph Kuhr	October 24, 2008	203
A Galvan (the race that created the Omnitrix and gave Ben the form of Grey Matter) named Albedo builds his own Omnitrix and is permanently stuck in Ben's human form (since wearing the Omnitrix, Ben's DNA has become a default in the Omnitrix). Now, because they share DNA, they can change into the same forms as each other. Desperate to find Ben, Albedo resorts to destroying DNAlien hives and Forever Knight castles, demanding information on the teenage Omnitrix barer. When Gwen and Kevin hear rumors of Ben causing all that damage without them, they're naturally suspicious of the real Ben, who has been studying for a physics test the entire time. After making a chili fry run, the team sees Albedo at the same restaurant (as he has developed a craving for the chili fries, claiming it to be a human DNA weakness). Gwen and Kevin follow Albedo thinking he's Ben, leaving the real Ben behind in the process. They follow him to a forever Knight castle, Ben following as Big Chill. Albedo demands Ben's Omnitrix so that he can restore his Galvan form. Ben naturally refuses, and the resulting conflict causes both Ben and Albedo's Omnitrixes become attached, permanently damaging Albedo's human form. Azmuth arrives via teleportation and removes the face plate of Albedo's Omnitrix, ensuring his human form is both a punishment and a prison for proving himself as a lesser being. Albedo is teleported to a Plumber prison while Azmuth says to Ben that he was the one to use the Omnitrix for good, not evil. Azmuth leaves, warning the team that "Great trials lay ahead. Be ready."
4	17	"Save the Last Dance"	Dan Riba	Amy Wolfram	November 7, 2008	204
Gwen asks Kevin to take her to her school's dance, forcing a clueless Kevin to seek advice from Ben. However, Ben has his own problems. Big Chill is overriding the Omnitrix, and taking over his body with each transformation, Worse, Big Chill starts eating every metal object in sight uncontrollably. When Ben transforms back, he has no memory of his time as Big Chill. Asking Julie to help, she decides to follow Big Chill on her motor scooter, making notes of what he does. Big Chill, however, does not wish to be followed, and loses her. When Gwen hears about this, she decides not to attend the dance (much to Kevin's disappointment, has he studied dancing and fine dining extensively), and they, along with Julie, manage to track down Big Chill. The arrive seeing that Big Chill has constructed a large metal structure. Big Chill attacks them to defend it, and the teams manage to subdue the enraged alien. Kevin tries to destroy the structure, only to discover that Big Chill was building a nest for the eggs he had laid. The eggs hatch into infant Necrofriggians, and soon leave. Ben at last transforms back to his human state. Kevin teases Ben about being a "mother." Julie takes Ben home on her scooter. And, having missed the dance, Gwen and Kevin dance to the music in Kevin's car.
5	18	"Undercover"	Butch Lukic	Adam Beechen	November 14, 2008	205
After trying to test a broken teleporter pod, the team decide to enlist the help of Cooper Daniels, the young boy who had helped the Tennysons in the past. Upon reaching his home, they discover a video of his capture by the DNAliens. They track him down to the abandoned military base Los Soledad, where Paradox built his time machine. They discover that the Highbreed have erected a cloaking field, built by Cooper over the area, concealing a huge, mysterious arch-like device. They find Cooper helping to assemble pieces for the DNAliens out of a metal call barsidium. They free Cooper, but are soon captured by the Highbreed in charge of the base. Locking the team up in a storage room, they use Kevin's powers to absorb some of the barsidium, and use him as a tuning fork to amplify Echo Echo's powers, having discovered that the DNAliens are weakened by the strong reverb given off by the barsidium. They free Cooper and have him destroy the cloaking generator, during which he has visions of the arch acting as a gateway for a fleet of ships and the Earth being destroyed. The team is successful, and escapes. However, despite destroying the generator, the Highbreed manage to repair it and continue their operations unhindered, using ID masks to fool the local police by pretending to be construction workers, saying that soon, Los Soledad will be where all the action is happening.
6	19	"Pet Project"	John Fang	Len Uhley	November 21, 2008	206
Forever Knights' scientist Dr. Joseph Chadwick sends Sir Morton to kidnap Ship so that the Forever Knights can use him to mass-produce a fleet of interstellar spacecraft with which to attack the homeworld of the alien dragon that escaped them. (After the events at the Pier, ship had been staying with Julie.) At this time, Ship had hitched a ride in the mechanisms of Kevin's car, trying to stay with Julie, who was with Gwen and Kevin on their way to the local shopping mall. Morton attacks Ship, capturing the small alien and leaving Kevin's car in dire need of repair. Ben arrives too late, and the team sets out to find the Knights. Assuming that the Knights have something to do with a medieval-themed track of houses, the team, joined by Julie, attempt to sneak into the main house to recuse Ship. However, by this time, Chadwick had affixed a mind control on Ship, making his biometric markings go from green to red, and leaving him totally under Chadwick's control. Having absorbed the alien spacecraft that Chadwick made, the Knights now have the ultimate weapon. The team soon gets caught, and are to be executed by Ship. Desperately, Julie uses a trick she saw in an old alien movie, and is able to convince Ship to resist. With Ship now on their side, the Forever Knights' stronghold is destroyed and the team now has access to Ship's spaceship mode, as long as Ben helps Julie take care of Ship.
7	20	"Grounded"	Dan Riba	Jim Krieg	November 26, 2008	207
While fighting one of the Highbreed, Ben's parents catch him transforming into Swampfire. Seeing as he comes home with a black eye, they forbid him from using the Omnitrix ever again for fear of him getting hurt. With Gwen and Kevin on the trail of a Highbreed plot, Ben tries to sneak out of the house as Echo Echo. Once Ben's parents see that he disobeyed their orders, they do what they think is best for their son's protection and safety and ground him. His various attempts to aid his allies by phone and by computer only results in Ben being forced to tell his parents about Gwen helping him, resulting in her suffering the same fate as her cousin, and leaving Kevin alone to find out what the Highbreed are up to. Kevin manages to find out that the Highbreed are planning to use radioactive bat guano as a power source for a "surprise" (the hyperspace jumpgate in Los Soledad). Having been captured, Kevin's trouble with the DNAliens results in Ben making a final attempt to persuade his parents to his cause, saying that if he does not help Kevin, it would be against everything they ever taught him, and so escapes as Humongousaur nonetheless. After a short battle aboard a small freighter carrying a rare isotope which the DNAliens plan on using, Ben's parents come to the rescue, with one of Grandpa Max's old Plumber guns, admitting that they are proud of Ben. They win the fight, and destroy the ship. They cancelled the punishment, apologized for the mistake, and say they understand what he needs to do.
8	21	"Voided"	Butch Lukic	Jim Krieg	December 5, 2008	208
Helen and Manny use Gwen's powers to call on Ben's team to help deal with a dangerous foe in the Null Void: D'Void. Ben goes in alone, with Kevin and Gwen waiting on the other side to bring him back. Once inside, Ben is shocked to learn that "D'Void" is really his old enemy Dr. Animo, who has taken control of the Null Guardians and enslaved the inhabitants of the Null Void. Using them as slave labor, he has built a machine to drill through the dimensional wall, hoping to bring his army to Earth. With the help of Grandpa Max, who was transported to the Null Void in Max Out and has been leading a resistance movement under the name of 'The Wrench". He, along with Ben, Helen, Manny, Pierce, and a small force of rebels they've gathered, attack D'Void's forces, and Ben manages to destroy the drilling machine as Big Chill. Gwen opens a portal back to Earth for Ben, but Grandpa Max cannot join them yet as things have to be set right in the Null Void first.
9	22	"Inside Man"	John Fang	Matt Wayne	December 12, 2008	209
The team rescues a young man named Tyler, who stole the Oscillator Key for the Highbreed's hyperspace gateway from Los Soledad. He crashes the truck and suffers memory loss as he escapes. After being almost captured by the DNAliens in a small town, the team saves him and are forced to race the DNAliens to track down the device, resulting in a battle. The team is victorious, but they discover that Tyler is actually a DNAlien, having managed to resist the Xenocyte controlling him, and only looked human through the use of an ID Mask. More DNAliens arrive in a small tractor beam-equipped ship to reclaim the Oscillator Key, capturing Tyler during the struggle. Ben opts to save Tyler instead of retrieving the Oscillator Key, and uses the Omnitrix to restore him to human form. As the DNAliens escape, the four now know their plan and prepare to take action.
10	23	"Birds of a Feather"	Dan Riba	Stan Berkowitz	March 24, 2009	210
The prince of the Arachnachimps (Spidermonkey's race), Simion, needs help in retrieving a crystal which is supposedly the symbol of the monarchy on his planet. The crystal is being kept in a base on the moon. Ben offers his help, but Kevin and Gwen are skeptical. In the midst of the battle, Ben discovers that Simion has been lying, and that the crystal is actually powering an intergalactic communications station. By stealing it, Simion will prevent Earth from calling for help against the upcoming Highbreed invasion. Ben tricks Simion into stealing a box containing a dispenser of worthless DNAlien resin remover acid instead, resulting in Simion having a very unpleasant encounter with the Highbreed commander that employed him.
11	24	"Unearthed"	Butch Lukic	Charlotte Fullerton	March 25, 2009	211
A DNAlien mining operation under Los Soledad uncovers an alien spacecraft, from which a large alien creature is released. It wanders around the nearby town collecting random items, eventually attracting the attention of Ben, Gwen, and Kevin. After a short battle, they realize that the alien is in fact a baby girl. The Alien perceives Gwen as an Anodite and hangs on her every word. Needing to return the baby to her parents, the team follows her back to her ship. After defeating the DNAliens who were mining the quartz rock to finish the jump gate, the team wakes the baby's parents, who depart the planet after Ben explains that they've been in suspended animation for fifty years as a result of Paradox's time experiment in 1952.
12	25	"War of the Worlds, Part One"	Dan Riba	Dwayne McDuffie	March 27, 2009	212
Paradox and Azmuth arrive on Earth to warn Ben of the approaching Highbreed fleet. Gwen and Kevin gather all the allies they've met (Alan, Cooper, Julie and Ship, as well as their enemy Darkstar) to counter the threat. Meanwhile, Azmuth reveals to Ben that the Omnitrix contains the DNA of every sentient species in the galaxy, over one million in total, and unlocks the Master Control so Ben can effectively combat the Highbreed. This includes all of his old aliens. With Ben as Cannonbolt, the team converge on the Highbreed hyperspace jump gate in Los Soledad in an effort to prevent its activation, but the attack only provokes the Highbreed in charge to summon the fleet ahead of schedule. To try and stop the fleet coming through, the team with Ben as Upchuck attempts to destroy the hyperspace jump gate but it does not work. Ben then turns into Way Big, and tries to rip down the gateway, it starts to work but as the Highbreed in charge now preemptively activates the gate, it initiates and knocks Ben unconscious. Omnitrix alien debuts: Cannonbolt (Alien Force debut), Upchuck (Alien Force debut), Way Big (Alien Force debut), Wildmutt (Alien Force debut)
13	26	"War of the Worlds, Part Two"	Butch Lukic	Dwayne McDuffie	March 27, 2009	213
The team has to get to the captain of the fleet, on the Highbreed head ship to stop the invasion. Ben, Gwen and Kevin quickly head to the captain of the fleet. The Highbreed commander and the team fight, and an enraged Gwen unleashes her dormant Anodite form for the first time in a desperate attempt to save Kevin, but returns to her normal human form. The trio is then surrounded by a group of DNAliens, but are saved by Grandpa Max, Pierce, Helen and Manny plus one Null Guardian, who have regained control over the Null Void. Ben, Gwen, Kevin, Azmuth and Ship as a spaceship head to the Highbreed's home world to confront the Highbreed Supreme with Ben as Brainstorm being the pilot. The Highbreed Supreme refuses to recall the fleet, and Azmuth reveals that the Highbreed's obsession with genetic purity has resulted in sterility in their species: they intend to cleanse the galaxy of all life in retaliation. Using the Omnitrix, Ben sends out an energy wave that reprograms the DNA of every Highbreed in the galaxy, fusing their DNA with random species from the Omnitrix to repair their genetic damage. Stunned and horrified at the loss of the genetic unity, the Highbreed Supreme immediately consider racial suicide as their only honorable option, but Reinrassic III, who has returned, convinces his race that their new impurity is desirable, and the fleet is recalled. Max decides to take in Ben's recruits (all except Darkstar, who ran off) and train them. As a side effect of reprogramming the Highbreed genetic damage, Ben finds the Master Control has been reset, leaving him with brand new aliens as well as his old ones. Omnitrix alien debuts: Lodestar (official debut)

Season 3 (2009–10)

No. overall	No. in season	Title	Directed by	Written by	Original air date	Prod. code
27	1	"Vengeance of Vilgax: Part 1"	Dan Riba	Dwayne McDuffie	September 11, 2009	301
Vilgax returns more powerful than ever and challenges Ben, who is missing some of his transformations.
28	2	"Vengeance of Vilgax: Part 2"	Butch Lukic	Dwayne McDuffie	September 11, 2009	302
Ben squares off against Vilgax. Omnitrix alien debuts: Diamondhead (Alien Force debut)
29	3	"Inferno"	John Fang	Len Uhley	September 18, 2009	303
Ben, Gwen, and Kevin discover that Vulkanus is planning to drill to the Earth's center
30	4	"Fool's Gold"	Dan Riba	Eugene Son	September 25, 2009	304
An alien asks Ben to help locate his missing best friend.
31	5	"Simple"	Butch Lukic	Stan Berkowitz	October 9, 2009	305
Ben and the team travel to an alien planet to resolve a conflict between the inhabitants.
32	6	"Vreedle, Vreedle"	John Fang	Charlotte Fullerton	October 16, 2009	306
Ben and Kevin try to thwart repo-men sent to return Ship to his maker and appeal to a judge to rescind his ruling.
33	7	"Singlehanded"	Dan Riba	Marty Isenberg	October 23, 2009	307
A bounty hunter who's after the Omnitrix sends Ben to the Null Void, but his left hand remains on Earth.
34	8	"If All Else Fails"	Butch Lukic	Adam Beechen	November 6, 2009	308
Ben and the team have to thwart a Highbreed failsafe, which gets accidentally set off.
35	9	"In Charm's Way"	John Fang and Rick Morales	Peter David	November 13, 2009	309
Charmcaster returns and gets Kevin to help her to defeat Gwen.
36	10	"Ghost Town"	Dan Riba	Nicole Dubuc	November 20, 2009	310
Vilgax asks for Ben's help to take down Zs'Skayr who has taken over his planet.
37	11	"Trade-Off"	Butch Lukic	Len Wein	December 4, 2009	311
Kevin teams up with Darkstar to retrieve an artifact that could cure both of them.
38	12	"Busy Box"	Rick Morales	Jake Black	December 11, 2009	312
Ben and the gang battle an alien's toy which proves to be very dangerous.
39	13	"Con of Rath"	Dan Riba	Len Uhley	January 8, 2010	313
The Omnitrix malfunctions, turning Ben into a ruthless and aggressive alien while on an intergalactic peace mission. Omnitrix alien debuts: Rath (official debut)
40	14	"Primus"	Butch Lukic	Charlotte Fullerton	January 15, 2010	314
Ben and the gang get transported by the Omnitrix to a strange new planet where they encounter an old enemy.
41	15	"Time Heals"	Rick Morales	Len Uhley	January 22, 2010	315
Gwen goes back in time to stop the Omnitrix experiment from ever happening while causing disasters in the present time.
42	16	"The Secret of Chromastone"	Dan Riba	Rich Fogel	January 29, 2010	316
A sick Ben is happy to see an old friend in Tetrax but finds out he has plans of his own.
43	17	"Above and Beyond"	Butch Lukic	Eugene Son	March 12, 2010	317
The Plumbers' Helpers travel to a Plumber station to rescue Max from an insane, rampaging Ben. Note: Gwen and Kevin are mentioned in this episode but don't appear for the first time.
44	18	"Vendetta"	Rick Morales	Len Wein	March 19, 2010	318
Kevin decides to settle old scores with an escaped con.
45	19	"The Final Battle, Part One"	Dan Riba	Dwayne McDuffie	March 26, 2010	319
Vilgax and Albedo return and team up to kidnap Kevin and Gwen so that they can take down their sole strongest enemy, Ben Tennyson. Ultimatrix alien debuts: Ultimate Humungousaur (official debut)
46	20	"The Final Battle, Part Two"	Butch Lukic	Dwayne McDuffie	March 26, 2010	320
Ben gives up the Omnitrix and overcomes seemingly impossible odds to defeat Vilgax, who has betrayed Albedo. Ultimatrix alien debuts: Ultimate Swampfire (official debut)

DVD releases

Region 1 releases

DVD title	Season	Aspect ratio	Episode count	Time length	Release date
Ben 10: Alien Force Volume 1[1][2]	Season One	4:3[1]	5[1]	110 Minutes[2]	October 21, 2008[1][2]
Ben 10: Alien Force Volume 2[3][4]	Season One	4:3[3]	4[3]	88 Minutes[4]	January 13, 2009[3][4]
Ben 10: Alien Force Volume 3[5]	Season One	4:3[5]	4[5]	88 Minutes[5]	April 7, 2009[5]
Ben 10: Alien Force Volume 4[6]	Season Two	16:9[7]	5[6]	113 Minutes[7]	September 1, 2009[6]
Ben 10: Alien Force Volume 5[8]	Season Two	16:9[9]	4[8]	90 Minutes[9]	November 17, 2009[8]
Ben 10: Alien Force Volume 6[10]	Season Two	16:9[10]	4[10]	90 Minutes[10]	March 30, 2010[10]
Ben 10: Alien Force Volume 7[11]	Season Three	16:9[11]	7[11]	159 Minutes[11]	June 29, 2010[11]
Ben 10: Alien Force Volume 8[12]	Season Three	16:9[12]	6[12]	136 Minutes[12]	August 24, 2010[12]
Ben 10: Alien Force Volume 9[13]	Season Three	16:9[13]	7[13]	180 Minutes[13]	October 5, 2010[13]

Region 4 releases

DVD title	Season	Aspect ratio	Episode count	Time length	Release date
Ben 10: Alien Force – Season 1[14]	Season One	4:3[14]	13 [14]	286 Minutes	June 1, 2011 [14]
Ben 10: Alien Force – Season 2[15]	Season Two	4:3[15]	13	286 Minutes[15]	June 1, 2011
Ben 10: Alien Force – Season 3[16]	Season Three	4:3[16]	10[16]	220 Minutes	June 1, 2011[16]

See also

• List of Ben 10 episodes
• List of Ben 10: Ultimate Alien episodes
• List of Ben 10: Omniverse episodes

References

1. "Ben 10: Alien Force – Volume 1". Internet: tvshowsondvd.com. Retrieved 2010-02-13.
2. "Ben 10: Alien Force, Vol. 1 (2008)". Product Info. Amazon.com. Retrieved 2008-10-04.
3. "Ben 10: Alien Force – Volume 2". Product Info. tvshowsondvd.com. Retrieved 2010-02-13.
4. "Ben 10: Alien Force, Vol. 2 (2008)". Product Info. Amazon.com. Retrieved 2010-02-13.
5. "Ben 10: Alien Force – Volume 3". tvshowsondvd.com. Retrieved 2010-02-13.
6. "Ben 10: Alien Force – Volume 4". Product Info. tvshowsondvd.com. Retrieved 2010-02-13.
7. "Ben 10: Alien Force, Vol. 4". DVD back cover. Amazon.com. Retrieved 2010-02-13.
8. "Ben 10: Alien Force – Volume 5". Product Info. tvshowsondvd.com. Retrieved 2010-02-13.
9. "Ben 10: Alien Force, Vol. 5". DVD back cover. Amazon.com. Retrieved 2010-02-13.
10. "Ben 10: Alien Force – Volume 6". Product Info. tvshowsondvd.com. Retrieved 2010-02-13.
11. Lambert, David (2010-02-10). "Ben 10: Alien Force DVD news: Announcement for Ben 10: Alien Force – Volume 7". News. tvshowsondvd.com. Retrieved 2010-02-13.
12. Lambert, David (2010-05-13). "Ben 10: Alien Force DVD news: Announcement for Ben 10: Alien Force – Volume 8". News. tvshowsondvd.com. Retrieved 2010-05-13.
13. Lambert, David (2010-06-17). "Ben 10: Alien Force DVD news: Announcement for Ben 10: Alien Force – Volume 9". News. tvshowsondvd.com. Retrieved 2010-06-17.
14. "Ben 10: Alien Force – Vol. 1". Product Info. ezydvd.com.au. Retrieved 2010-02-13.
15. "Ben 10: Alien Force – Vol. 2". Product Info. ezydvd.com.au. Retrieved 2010-02-13.
16. "Ben 10: Alien Force – Vol. 3". Product Info. ezydvd.com.au. Retrieved 2010-02-13.

External links

• "Ben 10: Alien Force – Cartoon Network".
• Ben 10: Alien Force at the Internet Movie Database
• Ben 10: Alien Force at TV.com