Ben 10

Season 4, Episode 13

Episode Title: Goodbye and Good Riddance

Air Date: 2008-04-15

Overview:

The summer finally ends. Ben and Gwen have to go back to their normal lives. Grandpa Max tells Ben to keep the Omnitrix a secret from everyone, even his parents. Ben agrees, but Vilgax arrives and he'll stop at nothing to get the Omnitrix.