All Ben 10 Alien Force Episodes 🎁 Trusted
Synopsis: Kevin betrays the group to steal a high-tech part for a mysterious employer named Argit. The episode explores Kevin’s criminal past and his shaky redemption arc. Key moment: Argit, a quill-covered con artist, debuts.
Synopsis: Vilgax wears the Omnitrix but cannot control it. Ben uses a backup prototype to regain his aliens. He defeats Vilgax by tricking him into absorbing too much alien DNA. Key moment: The Omnitrix is returned to Ben, but it recalibrates one final time—leading directly into the sequel series, Ben 10: Ultimate Alien.
With Max missing once more, Ben steps up as the official leader. The Highbreed conflict escalates from skirmishes to full-blown war. Ben unlocks new aliens like Swampfire and Humungousaur, displaying power levels he didn't know he had.
The team faces internal conflict when they realize Kevin’s mutations are worsening. Kevin’s ability to absorb matter is causing him to lose control, turning him into a hulking, misshapen monster of rock, metal, and crystal. Despite his monstrous appearance, Kevin fights alongside Ben and Gwen, his feelings for Gwen keeping him grounded. all ben 10 alien force episodes
The trio travels across the galaxy to the Highbreed homeworld to find a way to stop them. They discover the Highbreed Council, led by the Highbreed Supreme. Ben realizes he cannot defeat them through brute force alone. He devises a biological solution.
In the pivotal "War of the Worlds" two-parter, the Highbreed launch their final assault. Ben infiltrates the Highbreed command center. Instead of killing them, he uses the Omnitrix to rewrite their genetic code. He hacks the device to broadcast a signal that fuses the Highbreed DNA with that of other species. This breaks their genetic purity, curing their sterility but ending their obsession with supremacy. The Highbreed, now genetically "impure" but alive, agree to call off the war and return home.
In the aftermath, Kevin is cured of his mutation, returning to his human form, though he retains his original power to absorb energy. Synopsis: Kevin betrays the group to steal a
However, a new threat emerges. A rogue alien named Ragnarok escapes a Plumber prison. During the confrontation, Kevin discovers that Ragnarok was responsible for his father’s death. Blinded by vengeance, Kevin attempts to kill Ragnarok, crossing a moral line that disturbs Ben. Though Ragnarok is defeated, a rift grows between Ben and Kevin regarding the rules of heroism.
As of 2025, the complete series (all 46 episodes, counting the two seasons of Alien Force separately from Ultimate Alien) is available on:
Ben 10: Alien Force (2008–2010) is the first direct sequel to the original Ben 10 (2005–2008). Darker, more serialized, and aimed at a slightly older audience, the series follows a 15-year-old Ben Tennyson as he reunites with his cousin Gwen and former rival Kevin Levin to find the missing Grandpa Max. Below is a breakdown of all 46 episodes across its three seasons. When Ben 10: Alien Force premiered on Cartoon
Vibe: Mystery, low-key, and tactical. The new Omnitrix (the "Calix") is recalibrated, giving Ben 10 new aliens like Swampfire, Echo Echo, and Big Chill.
| Episode | Title | Key Plot Point | | :--- | :--- | :--- | | 1-2 | Ben 10 Returns (2-parter) | Ben reunites with Gwen (now a magic-wielder) and Kevin (an anti-hero). They save the world from the DNAliens. | | 3 | Everybody Talks About the Weather | Introduction of Alan, a hybrid human/Pyronite (Heatblast’s species). | | 4 | Kevin’s Big Score | Kevin’s criminal past comes back to haunt him. | | 5 | All That Glitters | Gwen’s rivalry with Charmcaster heats up. | | 6 | Max Out | The team finds a frozen alien; the first hint of the High Breed conspiracy. | | 7 | Pier Pressure | Ben faces a moral choice involving a mutated sea monster. | | 8 | What Are Little Girls Made Of? | The origins of the DNAliens and the "Helix." | | 9 | The Gauntlet | Return of the Techadon robots. | | 10 | Paradox | Must-Watch. Professor Paradox (time traveler) explains the multiverse. | | 11 | Be-Knighted | The Forever Knights become a serious military threat. | | 12 | Plumbers’ Helpers | Young plumbers-in-training debut (Manny, Helen). | | 13 | X = Ben + 2 | Ben clones himself with Echo Echo. Chaos ensues. |
Best of S1: Episode 10 (Paradox) – It expands the lore exponentially.
When Ben 10: Alien Force premiered on Cartoon Network in April 2008, it marked a bold evolution for the franchise. Gone was the 10-year-old, shorts-wearing hero who shouted catchphrases. In his place stood a 15-year-old Ben Tennyson—more brooding, more responsible, and stripped of his trusty Omnitrix. The series successfully bridged the gap between childhood nostalgia and teen drama, introducing darker themes, complex villains (the High Breed), and a deeper roster of aliens.
For fans looking to revisit the series or newcomers wanting a complete roadmap, this article covers all 46 episodes of Ben 10: Alien Force across its three seasons, breaking down story arcs, key alien debuts, and where the show fits in the larger Ben 10 timeline.
