Secret of the Omnitrix (1) Ben 10 : Season 4 Episode 5
TV-Y7-FV Cartoon Network 22m int(0)
Aired: August 4th, 2007 @ 10:00 AM EST on Cartoon Network
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across space to track down the Omnitrix's creator, Azmuth.