: Manny (a half-Tetramand) and Helen (a half-Kineceleran) mistake Ben, Gwen, and Kevin for dangerous aliens.
The 12th episode of Ben 10: Alien Force Season 1 is titled . In this episode, Ben and his team encounter two rogue Plumber offspring, Manny Armstrong and Helen Wheels , who have been hunting aliens and trapping them in what they believe is a "disintegrator ray"—which is actually a Null Void Projector . Episode Summary Ben 10: Alien Force Season 01 (Dub) Episode 12
: Ben eventually convinces the pair that they are allies. He realizes that many of the "aliens" they previously captured were actually other innocent Plumber kids. : Manny (a half-Tetramand) and Helen (a half-Kineceleran)
: To make amends, Helen and Manny decide to enter the Null Void themselves to find and rescue the people they wrongfully imprisoned. Key Characters & Transformations Episode Summary : Ben eventually convinces the pair
Watch these recaps and reactions to see Manny and Helen in action against Ben's team: