Gwen Alters the Past Timeline

This was a possible future the main timeline was leading toward.

Events
After stealing a spellbook from Hex and Charmcaster, Gwen casts a spell to go back in time and prevent Kevin from hacking the Omnitrix in order to prevent his mutation. Paradox warned Gwen against doing this and later explained that as a result of her intervention, without the mutation keeping Kevin safe, and the team couldn't stop Hex and Charmcaster from taking over the world, Gwen of this future was killed, Ben was tortured and Kevin was put under Charmcaster's control. The main timeline Gwen went back in time again, and prevented her past self from preventing hacking the Omnitrix, thus, preventing this future from happening.

Appearences

 * Time Heals