Dr. Animo has escaped his Plumber prison, and Ben and Rook must track him down before he turns the world into his personal mutant ant farm!
Young Ben, Gwen, and Grandpa Max visit Azmuth on Galvan Prime where they have their first encounter with Malware.
Ben and Rook encounter a race of elastic, hot-blooded aliens in Undertown who want to use a stolen nuclear fusion engine to activate a volcano!
Ben and Rook go their separate ways after an argument, leaving Ben vulnerable.
Ben learns the origin of the Nemetrix, and the link between Khyber, Malware, and Dr. Psychobos.
When Dr. Psychobos steals a part out of the Omnitrix, it's up to Ben, Rook, and a small team of Plumbers get everything back to normal.
Gwen and Kevin pay Ben a surprise visit; is Kevin the reason the Tetramand princess is prepared to attack the Earth.
A fishing trip in Undertown takes a bizarre twist as Ben, Rook and Grandpa Max search for a ship-bottling alien pirate.
Blukic and Driba go looking for smoothies while Ben and Rook try to stop Trombipulor.
Khyber and his dog attack Ben and Rook.
Ben and Rook take on evil Robots from Dimension 12.
Yuri Lowenthal
Ben Tennyson
David Kaye
Heatblast/Cannonbolt
Tara Strong
Young Ben Tennyson
Charlie Adler
Proctor Servantis / Hokestar / Collectimus
Paul Eiding
Max Tennyson
