Season 2
10 episodes · first aired 2012-11-24
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | Outbreak 2012-11-24 | The 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. | 2012-11-24 | 6.5 |
 | 02 | Many Happy Returns 2012-12-01 | Gwen 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. | 2012-12-01 | 7.0 |
 | 03 | Gone Fishin' 2012-12-08 | 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. | 2012-12-08 | 7.5 |
 | 04 | Blukic and Driba go to Mr. Smoothy's 2012-12-15 | Ben and Rook must stop Trumbipulor from gaining absolute power while Blukic and Driba set out to find Mr. Smoothy's. | 2012-12-15 | 5.5 |
 | 05 | Malefactor 2012-12-22 | Ben and Rook are attacked by Khyber at a festival. | 2012-12-22 | 5.5 |
 | 06 | Arrested Development 2013-01-05 | Billy Billions turns Ben and Rook into kids again. | 2013-01-05 | 7.0 |
 | 07 | Bros in Space 2013-01-12 | Ben and Rook visit Rook's family while Revohnnah is attacked by an old foe. | 2013-01-12 | 5.5 |
 | 08 | Ben Again 2013-01-19 | When 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. | 2013-01-19 | 5.5 |
 | 09 | Store 23 2013-01-26 | Ben meets an alternate version of himself while searching for a 23rd Mr. Smoothy's store. | 2013-01-26 | 6.8 |
 | 10 | Special Delivery 2013-02-02 | As payment for destroying his car, Mr. Baumann orders Ben to make deliveries for him without using the Omnitrix. | 2013-02-02 | 7.0 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.