Ben 10: Alien Force - Time Heals

Seizoen: 3 - Aflevering: 15 / 41 - Eerst uitgezonden: 22 januari 2010 - Episode ID: 476046

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.