The Omegastar (Part 1)

The Omega Star (Part 1) is the third episode of the second season of Ben 10: Aliens Unleashed.

Plot
As a part of his plan to get Ben Tennyson alone by eliminating his teammates, The Master comes before Darkstar and offers the young man an unlimited supply of power in return for his help. Darkstar agrees to aid The Master, as he would be unstoppable and would never have to feed off of other beings again, and he later appears before Gwen Tennyson, stating he's learned the error of his ways and wants to redeem himself by joining Ben's team. The villain's charm and cunning may have Gwen fooled, but Ben and Kevin aren't so easily swayed.