The team's camping break is interrupted when a pod crashes nearby. The occupant has no memory who she is or where she came from. Sunder soon arrives to retrieve her.
As the team checks on possible alien activity, they're stopped by a Plumber Magister who accuses them of impersonating Plumbers and orders them not to fight any more aliens until the situation can be sorted out... in a few months. Meanwhile, Darkstar emerges, a new villain who allies himself with the DNAliens to go after Ben and the others.
Vilgax has beaten the heroes of ten planets and taken their powers as his own. Now he's looking for Ben.