Time Heals Ben 10: Alien Force : Season 3 Episode 15
TV-Y7 Cartoon Network 22m
Aired: January 22nd, 2010 @ 8:00 PM EST on Cartoon Network
Despite being warned by Paradox, Gwen travels back in time to prevent the accident that turned Kevin into a monster from ever happening. Gwen returns to the present only to find that her time traveling caused a series of events that led to Hex ruling the world.
