Following a confrontation with Dr. Animo at a power facility, Ben discovers an alarming issue with the Omnitrix but keeps it to himself. Soon, Tetrax arrives with a dire warning: the Omnitrix is sending out a self-destruct signal. Teaming up, Tetrax and Ben embark on a quest to locate the Omnitrix's creator in a race against time to prevent annihilation of both the device and the universe. Unbeknownst to them, Gwen sneaks along to support her cousin on this perilous mission.