Ben 10: Ultimate Alien Season 2 Episode 5
Gwen is excited by the prospect of her cousin Sunny paying the team a visit while dealing with the Robots of Dimension 12. But her excitement quickly turns into trepidation when it is uncovered that her cousin is not all that she appears and has some particularly sinister intentions.
Serie: Ben 10: Ultimate Alien
Episode Title: Girl Trouble
Air Date: 2011-03-11