Ben 10: Ultimate Alien — Season 1, Episode 17: Nor Iron Bars a Cage
Animation, Action & Adventure, Sci-Fi & Fantasy, Kids • 23 min • 2 seasons, 52 episodes • ★ 8.2/10
Episode synopsis
Kevin's out for payback on anyone who has ever crossed him. His next stop is a prison in the Null Void. Ben and Gwen try to stop him, where Ben comes to a grim decision.
About Ben 10: Ultimate Alien
With his secret identity now revealed to the world, Ben Tennyson continues to fight evil as a superhero with the help of the newly acquired Ultimatrix.