Argit manipulations lead to a tragedy.
This season focuses on Ben's life after his secret identity is revealed to the world and his battle against the intergalactic criminal, Ben 10 Wiki
– The DNAliens return on the Arachnichimp home world after Prince Simian accidentally infects his own planet. Season 3: The Dagon and Diagon Arc (Episodes 33–52) ben 10: ultimate alien all episodes
– To stop Aggregor from obtaining the third map piece in the magical dimension of Ledgerdomain, Gwen convinces the team to forge a dangerous alliance with Charmcaster.
The final season brings the Dagon storyline to a climax. Vilgax returns in a new form, Old George reveals his immortal history, and Ben faces a cosmic war that threatens to rewrite reality itself. Argit manipulations lead to a tragedy
– Ben wields Ascalon and the Ultimatrix to defeat Dagon-Vilgax, ushering in a new era for the Omnitrix. The Evolution of the Ultimatrix
The comprehensive guide to Ben 10: Ultimate Alien covers all 52 episodes across three action-packed seasons. The final season brings the Dagon storyline to a climax
– Ben, Gwen, and Kevin are forced to undergo official training at the Plumber Academy under a strict drill sergeant.
Old George, the founder of the Forever Knights, returns to unify the factions. He declares a holy war to purge all alien life from Earth, forcing Ben into a moral conflict. Episode 34: "Simian Says"