The series kicks off with Ben donning the Omnitrix again after five years to battle the Highbreed and DNAliens. Ben 10 Returns (Parts 1 & 2): Ben, Gwen, and a reformed Kevin 11 team up. Everybody Talks About the Weather Meet Alan Albright, a Heatblast hybrid. Kevin's Big Score Kevin looks for alien tech to pay back a debt. All That Glitters The team meets Mike Morningstar. The search for Grandpa Max leads to a DNAlien factory. Pier Pressure
A group of young alien hybrids (including Manny, Helen, and Pierce) claim to be the next generation of Plumbers. Ben must earn their respect while fighting a DNAlien infestation. Key moment: The “Plumbers’ Helpers” become fan-favorite recurring characters.
The Omnitrix turns Ben into the aggressive Rath.
The threat escalates as the Highbreed launch a full-scale invasion. Ben, Gwen, and Kevin travel to various planets, gather allies, and face the ultimate return of Ben’s nemesis, Vilgax.14. 15. Alone Together 16. Good Copy, Bad Copy 17. Vengeance of Vilgax: Part 1 18. Vengeance of Vilgax: Part 2 19. Inferno 20. Plumber's Ransom 21. D'Anna Ryan 22. War of the Worlds: Part 1 23. War of the Worlds: Part 2 24. The Final Battle: Part 1 25. The Final Battle: Part 2 Season 3: The Broken Omnitrix & New Threats (2009–2010) all ben 10 alien force episodes
– The team goes to an oceanic planet to help a group of water-breathing aliens stop a corporate polluter.
– Ben, Gwen, and former rival Kevin Levin team up to track down a Highbreed commander.
: Ben's old bully, Cash, gains powers from a broken alien robot glove. The series kicks off with Ben donning the
– Ben's body is hijacked by Big Chill's instincts, forcing him to fly around eating metal to lay a clutch of eggs.
The Highbreed launch their final assault on Earth. Ben recruits all his allies, uses the Omnitrix to rewrite Highbreed DNA, and cures their genetic decay.
A fire-controlling villain named Heatblast (actually a copy of Ben’s original alien) rampages across the city. Ben discovers it’s a DNAlien remnant. Key moment: Ben faces a “mirror match” against an evil Heatblast. Kevin's Big Score Kevin looks for alien tech
A human disguised as a DNAlien infiltrates the team. Paranoia spreads as Ben suspects Kevin or Gwen of being the traitor. Key moment: The episode is a tight spy thriller with a clever twist.
Ben triggers the Omnitrix self-destruct, escapes with the new Ultimatrix, cures Kevin, and defeats Vilgax once and for all.
Ben 10: Alien Force ran for across three seasons from 2008 to 2010. Set five years after the original series, it follows a 15-year-old Ben Tennyson as he re-dons the Omnitrix to lead a team consisting of his cousin Gwen and former rival Kevin Levin against a galactic threat. Season 1 (Episodes 1–13)
The final showdown with the Highbreed fleet. Season 3 (Episodes 27–46)