Allowing Ultimate Kevin to absorb some of Gwen's power gives him a taste for more, enabling Gwen to be used as bait. She and Ben and a few unexpected others work in tandem to delay Kevin long enough for Cooper and Darkstar to fashion a solution from a surviving fragment of the Dominus Librium. As fighting intensifies, though, it's hoped the proposed cure can be ready before anyone dies or before there's no choice but have Kevin put down. Written by
Did You Know?
This is the only episode in the Ben 10 franchise in which Kevin's step-father, Harvey Hackett, appears. See more
Now that's what I call a happy ending.
You don't know the half of it. We expected Heatblast and the others to get their powers back...
...but even the energy Aggregor stole went back to where it belongs...
...and returned US from oblivion. Thank you, Ben Tennyson.
Wasn't me this time. It was all of us.