Ben 10: Alien Force

Season 2, Episode 8

Episode Title: Voided

Air Date: 2008-12-05

Overview:

After Gwen receives an S.O.S. from Helen, Ben must go into the Null Void to save her and Manny. Once there, he must find The Wrench in order to stop D'Void, who happens to be Ben's old enemy Dr. Animo