Ben 10: Alien Force

Season 1, Episode 8

Episode Title: What Are Little Girls Made Of?

Air Date: 2008-06-07

Overview:

When Ben and Gwen learn that their grandmother Verdona is an alien being, Verdona insists that Gwen should come along with her to her home planet and improve her abilities. With this, Gwen is faced with a difficult decision between a human and alien life.