All Ben 10 Alien Force Episodes -

: A prince from another world asks Ben to help retrieve a "holy artifact". : A giant baby alien is found in a construction site. War of the Worlds: Part 1 & 2

13 New Elements: The Omnitrix recalibrates fully; Ben gains the ability to master aliens faster.

The following episodes are from the Alien Force: Ultimate Collection DVD set: all ben 10 alien force episodes

Gwen goes back in time to prevent Kevin's mutation.

Ben teams up with his cousin Gwen and former rival Kevin Levin to investigate the "Highbreed" conspiracy. : A prince from another world asks Ben

: Introduction of Albedo, Ben’s Galvan rival who becomes a recurring fan-favorite antagonist.

The Omnitrix teleports the team to the planet where it was created. Time Heals Gwen travels back in time to stop Kevin’s mutation. The Secret of Chromastone Tetrax returns to reveal the truth about Chromastone. Above and Beyond The Plumber's Helpers must pass a test set by Grandpa Max. The Final Battle (Parts 1 & 2): The following episodes are from the Alien Force:

The team rescues Cooper Daniels, who has been forced to build a device for the DNAliens.