Ben 10: Ultimate Alien is the third installment in the original Ben 10 animated continuity (following Ben 10 and Ben 10: Alien Force). It aired 2010–2012 and follows teenage Ben Tennyson after his identity as a superhero becomes public. With the Ultimatrix upgraded into the Ultimatrix/Ultimatrix’s successor device (the “Ultimatrix” evolving into the Ultimatrix→Ultimatrix Ultimate forms in-story), Ben gains “ultimate” versions of many aliens and faces new threats while balancing fame, friends, and responsibility.
Viewing order and completeness
: An Osmosian villain named Aggregor kidnaps five powerful aliens from the Andromeda Galaxy. His goal is to absorb their powers to reach the "Forge of Creation" and acquire the power of a Celestialsapien (Alien X). ben 10: ultimate alien all episodes
For a full breakdown of the show’s run, including specific release dates and detailed summaries, you can check out the comprehensive Ben 10: Ultimate Alien - Wikipedia page or the List of Ben 10: Ultimate Alien episodes - Wikipedia . The Three Major Arcs Ben 10: Ultimate Alien is the third installment