34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity

Ben 10 Returns: Part 1 is the first episode of Ben 10: Alien Force.


Gwen Karate2

Gwen and Ben at age fifteen

At a DNAlien lair, the Highbreed commander is informed of an individual leaking the alien's operations to the authorities for several months. The source of the leak has been located: Max Tennyson. The commander orders that Max be eliminated to prevent further interference with their plans.

A soccer game is shown being held at Ben Tennyson's school. Ben, now 15, is his team's goalkeeper while bullies Cash and J.T. are among the opposing team. With little time left, Cash and J.T. nearly score a goal but are stopped by Ben just as the time stops. Following the match, Ben meets a girl named Julie, who congratulates him on his victory. Ben bikes to his grandfather's RV, the Rust Bucket and knocks on the door, unaware he is being watched. When no one answers, Ben sees that the lights inside are off. He finds the vehicle's key and manages to enter, finding the interior ransacked. The bathroom is empty despite supposed noises coming from inside. As he is leaving, Ben is attacked by a DNAlien and is unable to defend himself without the Omnitrix. The DNAlien momentarily loses sight of Ben, who takes advantage of the situation and scares off the alien with a fire extinguisher.

Ben Old Omnitrix

Ben reuses the Omnitrix after four years

Ben attempts operating the vehicle's dashboard when a compartment opens with a device inside. The device contains a pre-recorded holographic message from Max, who informs Ben of renewed alien activity on Earth that he is investigating and that the Omnitrix is safe with Ben. Ben does not notice the appearance of a DNAlien on the recording as it ends. Ben rushes home to see if Max was serious - the Omnitrix is indeed there in his room inside a box; Ben is confused of Max's motives.

Ben leaves to see Gwen at her karate class. Ben tells her he needs her advice on something - he shows her the recording, believing Max is telling him to begin reusing the Omnitrix, but Gwen disagrees, remembering that it was always Ben's choice as to whether or not he wanted to use it. Ben says how he used to feel special wearing the watch, but Gwen tells Ben he was the one that was special. She warns that his regular teenage life will come to an end once he starts using the Omnitrix again, but Ben is confident Max is in need of his help. The man watching Ben at the Rust Bucket reappears asking for the Omnitrix. Ben refuses and attempts to run, but the man pursues them and reveals himself to in fact be an alien known as Magister Labrid. He shoots Ben when the latter attempts to run; Gwen harnesses her greatly enhanced magical prowess to restrain Labrid; they interrogate him and learn he is a Plumber like Max. He reports that Max went missing in the middle of a case. The Magister suddenly realizes who he's talking to and apologizes for mistaking Ben for a random thieving child. He agrees to help them find Max.

Ben then decides to wear the Omnitrix. The three head to an abandoned train station, having been informed by Max that an illegal alien tech delivery is being carried out by the Forever Knights. Taking cover, they watch as more shipments arrive followed by a green muscle car - out steps the Knights' supplier: Kevin Levin, who Ben and Gwen instantly recognize. The trade takes place as planned - being delivered is a weapon called the Laser Lance, which Kevin tests on a nearby train car. Labrid is infuriated that Level 5 technology is present on Earth (the planet's standard being Level 2) - however, the human weapon suppliers are in fact DNAliens - the Magister uses his pistol to create a fire barrier between his group and the criminals. The Forever Knights, still continue to converge on them - Ben attempts to fight them through activating the Omnitrix, but the Omnitrix is dysfunctional.

ReOmnitrix Alienforce

The Omnitrix is recalibrated

Gwen uses her powers to combat the Knights and creates a shield before them to protect Ben. Both Gwen and Labrid become immobilized by the DNAliens' slime-like salivary material. Ben watches the Omnitrix suddenly change its appearance on the spot - with his watch recalibrated, Ben sees a newer collection of species to transform - selecting at random, Ben finds himself transforming into a plant-based, odorous creature called Swampfire.

Swampfire Pose


Ben uses Swampfire's great strength to fend of his enemies - he is unimpeded by incoming gunfire, which appears to harmlessly impale his body. A shot fired suddenly severs his arm, but his powers enable him to reattach lost limbs. Kevin, meanwhile, confronts Ben for revenge for his defeat and imprisonment years ago. His new abilities allow him to literally absorb any form of matter, resulting in his skin being composed of said matter instead. He and Ben duel. Kevin tries using a train car to attack Ben, but using Swampfire's ability of producing fire, Ben blasts the car, incapacitating Kevin. Labrid places special cuffs on Kevin that suppress his matter absorption ability.

With the Knights having escaped with the weaponry, Labrid wants Kevin to disclose their location as he set up the deal. Kevin agrees to help as he was never paid. They travel in his car. Labrid explains that the weapons deal would lead them to the alien activity Max mentioned, before Max vanished. Gwen jokes that Max is lying to them and is enjoying leisure instead, but Ben emphatically calls her off for it - this frustrates Kevin, who stops the car and tells Ben to apologize (this implies his future romantic interest for her). Ben does so, though Gwen understands his worries - Labrid points out Ben is the one with the Omnitrix and he should be trying to find Max. They arrive at a large castle. Gwen uses her abilities to lower the drawbridge, but the place is deserted. Kevin is sure this is still the right place and instructs them to look out for a hidden door. He accidentally knocks over a suit of armor - the sound awakens a massive dragon-like creature.

Noteworthy Events

Major Events

  • Max Tennyson goes missing which leads Ben and Gwen on a quest to search for him.
  • The Omnitrix recalibrates, after Ben puts the Omnitrix back on his wrist for the first time in roughly four years.
  • Kevin Levin returns after a four-year absence.

Character Debuts

Omnitrix Alien Debuts



Aliens Used



Kevin: (Ben, Gwen, Kevin, and Magister Labrid arrive at the Forever Knight castle) This is it.
Ben: Subtle, nobody would think to look for knights in here.
Kevin: You didn't.

Quotes Right


Highbreed Leader: You may speak to me, half-breed vermin.
DNAlien: Gratitude master. For months now, someone has been leaking the details of our secret operations to the authorities. I have new information of interest. We have found the source of the leak. His name is Max Tennyson. We've had trouble with him before.
Highbreed Leader: Then let this be the last time he troubles us. Destroy him!

Quotes Right


Kevin: (after Ben is almost hit by a falling statue) C'mon man! What are you doing?
Ben: Sorry. I guess I'm just a little... (sees the dragon behind him) ...paranoid!!

Quotes Right


Gwen: Kevin, people could be hurt.

Quotes Right


Swampfire: (transforms into Swampfire) SWAMPFIRE! Eew, what's that smell? (sniffs his armpit) Is that me?

Quotes Right


Ben: You still got some of that stuff on your hair.
Kevin: (Gwen feels her hair) Other side.
Gwen: (disgusted) Eww...

Quotes Right


Swampfire: (Forever Knights are firing at him) That tickles! (arm falls off) Hey! (arm attaches back) You guys are in so much trouble! (Swampfire defeats two knights, and Kevin appears.)
Kevin: Hey, Tennyson!
Swampfire: What do you want?
Kevin: Let's see, you trapped me in the Null Void all these years...
Swampfire: You did that to yourself!
Kevin: ...And you ruined my deal today. I'm thinking I want revenge. The good news is, since I can absorb anything, (absorbs metal from train track) I've got more than enough power to take it.
Swampfire: (is shocked by Kevin's ability) That's new!

Quotes Right


Ben: Not that I know how to work this thing anymore.
Kevin: Maybe after you get your license, pee-wee.

Quotes Right

Naming and Translations

Language Name Origin
French Ben 10 le retour, 1re partie Ben 10 the return, 1st part
Hungarian Ben 10 visszatér, Első rész Ben 10 Returns: Part 1
Portuguese (Br) O Retorno de Ben 10: 1ª Parte The Return of Ben 10: 1st Part
Spanish (HA) Ben 10 Regresa: Parte 1 Ben 10 Returns: Part 1
Spanish (Spain) El Retorno De Ben 10: Parte 1 The Return Of Ben 10: Part 1


Ben 10: Alien Force Episodes
Season 1
Ben 10 Returns: Part 1Ben 10 Returns: Part 2Everybody Talks About the WeatherKevin's Big ScoreAll That GlittersMax OutPier PressureWhat Are Little Girls Made Of?The GauntletParadoxBe-KnightedPlumbers' HelpersX = Ben + 2
Season 2
Darkstar RisingAlone TogetherGood Copy, Bad CopySave the Last DanceUndercoverPet ProjectGroundedVoidedInside ManBirds of a FeatherUnearthedWar of the Worlds: Part 1War of the Worlds: Part 2
Season 3
Vengeance of Vilgax: Part 1Vengeance of Vilgax: Part 2InfernoFool's GoldSimpleVreedle, VreedleSinglehandedIf All Else FailsIn Charm's WayGhost TownTrade-OffBusy BoxCon of RathPrimusTime HealsThe Secret of ChromastoneAbove and BeyondVendettaThe Final Battle: Part 1The Final Battle: Part 2
Ben 10: Alien Swarm
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