Note: "Secrets" serves as the season finale, featuring a direct confrontation with Vilgax.
Ben 10 (Original Series) Network: Cartoon Network Created by: Man of Action (Duncan Rouleau, Joe Casey, Joe Kelly, and Steven T. Seagle) Original Air Dates: December 27, 2005 – April 15, 2008 list of ben 10 episodes
| Series | Episodes | |--------|----------| | Original Ben 10 | 52 | | Alien Force | 46 | | Ultimate Alien | 52 | | Omniverse | 80 | | Reboot (2016) | 166 (≈52 TV half-hours) | Note: "Secrets" serves as the season finale, featuring
Note: While "Goodbye and Good Riddance" is considered the series finale, the timeline is occasionally confused with the TV movies. Ben’s identity becomes public
Ben’s identity becomes public. He gains the , which can evolve aliens into stronger “Ultimate” forms.
| No. | Title | Air Date | | :--- | :--- | :--- | | 14 | | Apr 29, 2006 | | 15 | The Big Tick | May 6, 2006 | | 16 | Framed | May 13, 2006 | | 17 | Gwen 10 | May 17, 2006 | | 18 | Grudge Match | May 31, 2006 | | 19 | The Galactic Enforcers | Jul 19, 2006 | | 20 | Camp Fear | Jul 26, 2006 | | 21 | Ultimate Weapon | Aug 2, 2006 | | 22 | Tough Luck | Aug 9, 2006 | | 23 | They Lurk Below | Aug 16, 2006 | | 24 | Ghostfreaked Out | Aug 23, 2006 | | 25 | Dr. Animo and the Mutant Ray | Oct 25, 2006 | | 26 | Back with a Vengeance | Oct 27, 2006 |
The final season of the original series is widely split into two distinct segments. The first half features standalone adventures, while the second half consists of the "Highbreed" arc (foreshadowing the events of Ben 10: Alien Force ) and the live-action movie event.