Ben 10: Alien Force (Seasons 1–3)

Ben 10: Alien Force (2008) is an animated action series from Cartoon Network — watch online on iFILM. Yuri Lowenthal voices the lead and Ashley Johnson plays Gwen. The show picks up five years after the original run, with Ben Tennyson now fifteen and the Omnitrix long off his wrist.

Then Grandpa Max vanishes. Ben snaps the device back on and discovers it has completely recalibrated: ten new alien forms, all more powerful than anything he had before. His cousin Gwen has spent the years mastering her energy powers, and former rival Kevin Levin — who once absorbed Ben's aliens against him — now fights on the same side. The three of them dig into the disappearance and uncover the Highbreed, an alien race with a quiet plan to wipe out every species on Earth. Three seasons, a darker tone than the original, and story arcs that actually build toward something. Stream all episodes of Ben 10: Alien Force online on iFILM.