When 10-year-old Ben Tennyson discovers a mysterious device, he gains the power to change into ten different alien heroes, each with uniquely awesome powers. With such abilities at his disposal, Ben realizes a greater responsibility to help others and stop evildoers, but that doesn't mean he's above a little superpowered mischief now and then.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | And Then There Were Ten | 2005-12-27 | 30 min |
| Season 1 | Episode 2 | Washington B.C. | 2006-01-13 | 30 min |
| Season 1 | Episode 3 | The Krakken | 2006-01-14 | 30 min |
| Season 1 | Episode 4 | Permanent Retirement | 2006-01-21 | 30 min |
| Season 1 | Episode 5 | Hunted | 2006-01-28 | 30 min |
| Season 1 | Episode 6 | Tourist Trap | 2006-02-04 | 30 min |
| Season 1 | Episode 7 | Kevin 11 | 2006-02-11 | 30 min |
| Season 1 | Episode 8 | The Alliance | 2006-02-18 | 30 min |
| Season 1 | Episode 9 | Last Laugh | 2006-02-25 | 30 min |
| Season 1 | Episode 10 | Lucky Girl | 2006-03-04 | 30 min |
| Season 1 | Episode 11 | A Small Problem | 2006-03-11 | 30 min |
| Season 1 | Episode 12 | Side Effects | 2006-03-18 | 30 min |
| Season 1 | Episode 13 | Secrets | 2006-03-25 | 30 min |
| Season 2 | Episode 1 | Truth | 2006-05-29 | 30 min |
| Season 2 | Episode 2 | The Big Tick | 2006-05-30 | 30 min |
| Season 2 | Episode 3 | Framed | 2006-05-31 | 30 min |
| Season 2 | Episode 4 | Gwen 10 | 2006-06-01 | 30 min |
| Season 2 | Episode 5 | Grudge Match | 2006-06-07 | 30 min |
| Season 2 | Episode 6 | The Galactic Enforcers | 2006-06-13 | 30 min |
| Season 2 | Episode 7 | Camp Fear | 2006-06-21 | 30 min |
| Season 2 | Episode 8 | The Ultimate Weapon | 2006-07-06 | 30 min |
| Season 2 | Episode 9 | Tough Luck | 2006-07-12 | 30 min |
| Season 2 | Episode 10 | They Lurk Below | 2006-07-18 | 30 min |
| Season 2 | Episode 11 | Ghost Freaked Out | 2006-07-25 | 30 min |
| Season 2 | Episode 12 | Dr. Animo and the Mutant Ray | 2006-08-25 | 30 min |
| Season 2 | Episode 13 | Back with a Vengeance | 2006-10-09 | 30 min |
| Season 3 | Episode 1 | Ben 10,000 | 2006-11-25 | 30 min |
| Season 3 | Episode 2 | Midnight Madness | 2006-12-02 | 30 min |
| Season 3 | Episode 3 | A Change of Face | 2006-12-09 | 30 min |
| Season 3 | Episode 4 | Merry Christmas | 2006-12-11 | 30 min |
| Season 3 | Episode 5 | Benwolf | 2007-02-17 | 30 min |
| Season 3 | Episode 6 | Game Over | 2007-02-24 | 30 min |
| Season 3 | Episode 7 | Super Alien Hero Buddy Adventures | 2007-03-10 | 30 min |
| Season 3 | Episode 8 | Under Wraps | 2007-03-17 | 30 min |
| Season 3 | Episode 9 | The Unnaturals | 2007-03-24 | 30 min |
| Season 3 | Episode 10 | Monster Weather | 2007-03-03 | 30 min |
| Season 3 | Episode 11 | The Return (1) | 2007-04-07 | 30 min |
| Season 3 | Episode 12 | Be Afraid of the Dark (2) | 2007-04-14 | 30 min |
| Season 3 | Episode 13 | The Visitor | 2007-04-21 | 30 min |
| Season 4 | Episode 1 | Perfect Day | 2007-07-14 | 30 min |
| Season 4 | Episode 2 | Divided We Stand | 2007-07-19 | 30 min |
| Season 4 | Episode 3 | Don't Drink the Water | 2007-07-26 | 30 min |
| Season 4 | Episode 4 | Big Fat Alien Wedding | 2007-08-02 | 30 min |
| Season 4 | Episode 5 | Ben 4 Good Buddy | 2007-09-22 | 30 min |
| Season 4 | Episode 6 | Ready to Rumble | 2007-09-29 | 30 min |
| Season 4 | Episode 7 | Ken 10 | 2007-10-06 | 30 min |
| Season 4 | Episode 8 | Ben 10 vs. Negative 10 (1) | 2008-03-09 | 30 min |
| Season 4 | Episode 9 | Ben 10 vs. Negative 10 (2) | 2008-03-09 | 30 min |
| Season 4 | Episode 10 | Goodbye and Good Riddance | 2008-04-15 | 30 min |
| Production | Sam Register | Producer |
| Writing | Joe Casey | Writer |
| Writing | Duncan Rouleau | Writer |
| Writing | Steven T. Seagle | Writer |
| Writing | Marsha Griffin | Writer |
| Writing | Eugene Son | Writer |
