OutbreakThe Omnitrix begins to malfunction and goes haywire when Psychobos steals a piece of an Omnitrix core causing Rook to mutate into a half-Gourmand and a half-Revonnahgander after Ben 10 attempts to complete a transformation.
Many Happy Returns
E2
Many Happy ReturnsGwen and Kevin visit Bellwood. Kevin tells Ben that he must hide himself from The Tetramand Princess Looma as she is hunting him as Looma wishes to marry Kevin.
Gone Fishin'
E3
Gone Fishin'Magister Patelliday is kidnapped by pirates who rob ships and put them in giant glass bottles to sell them. They intend to devour Patelliday. Any attempts at rescue are hard, since they have a Krakken and a robot army.
Blukic and Driba go to Mr. Smoothy's
E4
Blukic and Driba go to Mr. Smoothy'sBen and Rook must stop Trumbipulor from gaining absolute power while Blukic and Driba set out to find Mr. Smoothy's.
Malefactor
E5
MalefactorBen and Rook are attacked by Khyber at a festival.
Arrested Development
E6
Arrested DevelopmentBilly Billions turns Ben and Rook into kids again.
Bros in Space
E7
Bros in SpaceBen and Rook visit Rook's family while Revohnnah is attacked by an old foe.
Ben Again
E8
Ben AgainWhen Eon forces young Ben and teenage Ben to switch minds, only the time-traveling Professor Paradox can sort things out and help Ben stop Eon from taking over the timelines.
Store 23
E9
Store 23Ben meets an alternate version of himself while searching for a 23rd Mr. Smoothy's store.
Special Delivery
E10
Special DeliveryAs payment for destroying his car, Mr. Baumann orders Ben to make deliveries for him without using the Omnitrix.
