Ben 10: Alien Force

Ben discovers a secret arms deal between the Forever Knights and the DNAliens, and when Grandpa Max disappears under mysterious circumstances, he reactivates the Omnitrix to take on the challenge as a hero.

Ben, Gwen, and Kevin follow a lead to a desert location in search of Grandpa Max. There, they uncover a hidden Highbreed spaceship armed with a large cannon.

Gwen uses Grandpa Max's Plumbers badge to contact other Plumbers, leading to an unexpected encounter with a pyronite.

Kevin betrays Ben and Gwen by stealing the Rust Bucket and selling it on the black market for alien technology, causing a rift in their trust.

Ben follows Grandpa Max's instructions to contact a team of heroes, but the mission takes an unexpected turn when they encounter the heroes under less-than-ideal circumstances.

When Gwen's older brother, Ken, goes missing, she and her friends begin an investigation into his disappearance. Their search leads them to a surprising clue that unveils a long-held secret about the DNAliens.

Ben's planned date with Julie is disrupted when an alien named Ship arrives and creates havoc at the local fair.

Ben and Gwen learn that their grandmother, Verdona, is an alien, and she offers to take Gwen to her home planet to enhance her powers. Gwen is then faced with the choice of remaining with her human family or accepting her alien heritage.

Ben confronts Cash and JT, and during the encounter, a robotic gauntlet is discovered in Kevin's vehicle. Cash uses the device to target Ben, escalating their conflict beyond mere teasing.

A botched time experiment from the 1950s awakens a mysterious monster in the present day, compelling Ben, Gwen, and Kevin to team up with the time-traveling hero Paradox to stop it.

The Forever Knights acquire a weapon designed to assist them in defeating a dragon they have captured.

Ben and his team come across a group of freelance Plumbers who mistake them for a threat, resulting in a tense confrontation.

An alien emperor aims to destroy Earth after his daughter is captured. To stop the planet from being destroyed, Ben explores the mysteries surrounding Alien X.

A mysterious new antagonist named Darkstar arrives in the city, quickly drawing attention with a series of bold crimes that challenge the team.

During a battle, Ben and an alien commander are transported to a remote planet and must work together to find a way back to Earth.

An alien takes Ben's form and infiltrates his life, using the Omnitrix in an attempt to destroy him.

Kevin invites Gwen to the school dance, while Ben becomes concerned about his growing inability to control the Omnitrix.

Cooper is abducted by the DNAliens, who assign him the task of building a mysterious arch. They believe he possesses the necessary skills to complete their project. His abduction triggers a series of events that others must address.

The Forever Knights capture Ship in an effort to use his knowledge of alien technology to build a starship capable of tracking and destroying the alien dragon species.

Ben's parents discover his ability to transform into aliens using the Omnitrix and prohibit him from using it, later grounding him. Gwen also faces similar restrictions, leaving Kevin to take on the responsibility of stopping the DNAliens alone.

Ben and Gwen journey to the Null Void after receiving an S.O.S. from Helen. There, Ben must retrieve The Wrench to stop D'Void, a new form of his former enemy Dr. Animo, in order to save Helen and Manny.

Ben and his team assist in rescuing a prisoner who has escaped from the DNAliens, a group known for their genetic experiments and manipulation.

The gang helps the prince of the arachna-chimps recover his throne from those who have seized control of his kingdom.

Ben is tasked with caring for a baby monster and attempts to locate its parents before the DNAliens can capture it.

Ben, Gwen, and Kevin join forces with their allies to ready themselves for an impending invasion by the Highbreed fleet. As they prepare, Azmuth reveals a crucial insight regarding the Omnitrix's previously unknown abilities.

Ben embarks on a journey to the HighBreeds' realm with the objective of stopping their impending attack on Earth.

Vilgax, having conquered ten planets, arrives on Earth with the intent to eliminate Ben Tennyson.

Ben, Gwen, and Kevin work to recover the Omnitrix's missing DNA samples in order to prepare for the final battle with Vilgax. At the same time, Kevin begins to understand the advantages of his latest alien transformation.

Ben, Gwen, and Kevin discover a dangerous plan to drill to the Earth's core and detonate a bomb, which could have catastrophic consequences for the planet. They must act quickly to stop the threat before it's too late.

During a strange intergalactic popcorn festival, a group of goat-like aliens arrives on Earth. When one of the creatures eats meat, it transforms into a dangerous monster, forcing Ben, Gwen, and Kevin to find a way to reverse the change before it's too late.

An alien named Probity reaches out to Ben for assistance in ending the war on her home planet.

The ship's owner tries to recover the vessel by sending repo men to reclaim it, leading Ben and Kevin to take legal action in court, while Gwen and Julie are left to confront the repo men directly.

A bounty hunter targets Ben in an attempt to seize the powerful Omnitrix, leading to a confrontation that tests Ben's abilities and resolve.

A HighBreed officer, dormant beneath the earth, is awakened by earthquakes and initiates a destructive fail-safe, believing his species has lost the war. Ben teams up with Gwen and Kevin to rescue Grandpa Max and prevent global catastrophe.

Kevin begins to lose hope of regaining his human form until he meets a girl who accepts him regardless of his appearance. However, this new connection proves deceptive, as Charmcaster returns seeking revenge against Ben and Gwen, using Kevin as her pawn to carry out her plans.

Vilgax offers to free Ghostfreak from prison in exchange for information about the Omnitrix. However, Ghostfreak betrays him by enslaving Vilgax's people. As a result, Vilgax arrives on Earth and enlists Ben, Gwen, and Kevin to help him defeat Ghostfreak.

Kevin forms a temporary alliance with Darkstar in order to recover an artifact that has the power to restore them to their original forms.

Ben, Kevin, and Gwen find an alien device that can create robotic copies of its surroundings, but their excitement quickly turns to worry when the Vreedle brothers try to take the powerful device for themselves.

Zaw-Veenull asks Ben to transport Prince Tiffin to Jarret in order to preserve peace between their respective species. While traveling through space, the Omnitrix experiences a malfunction, causing Ben to transform into an aggressive Appoplexian named Rath.

Ben, Gwen, and Kevin are transported to the planet Primus by the Omnitrix, a device created by Azmuth. There, they must confront the challenge of stopping Vilgax from deactivating the Omnitrix at its place of origin.

Gwen ignores Paradox's warnings and uses time travel to prevent the incident that turned Kevin into a monster. When she returns to the present, she finds that her actions have triggered a series of events leading to Hex's global domination.

While he is ill, Ben is visited by his old friend Tetrax, who urgently requests the return of the Chromastone.

Grandpa Max enlists the help of the Plumber's Helpers after being attacked by Ben on an abandoned space station. The team must come together to rescue Max, stop Ben, and prevent the station from crashing into Earth.

Kevin discovers that his home has been broken into and joins forces with Ben and Gwen to investigate. Their search leads them to the dangerous criminal Ragnarok, who has escaped from imprisonment and is in pursuit of a powerful key. As they track down Ragnarok, Kevin becomes increasingly determined to stop him, especially after discovering a personal connection between Ragnarok and his father.

Albedo steals the Ultimatrix from Azmuth and uses it to abduct Gwen and Kevin, forcing Ben to confront him. Ben soon learns that Albedo is allied with Vilgax, and after being defeated by the two, he sacrifices the Omnitrix to save himself and his friends.

Ben enters Vilgax's ship to confront him in a climactic battle to prevent the invasion of Earth, with Albedo providing him the Ultimatrix, granting access to his original aliens and their powerful evolved forms.