This season introduces Eunice , a "living Omnitrix" who absorbed Gwen's DNA, and sees the return of Ben 10,000 .
Season 2 (Episodes 21–32) shifts into a more episodic format, expanding the lore of the Ben 10 universe. ben 10: ultimate alien all episodes
The first season (Episodes 1–20) focuses on two major shifts: Ben’s secret identity being leaked to the public by young fan Jimmy Jones, and the arrival of the Osmosian villain . This season introduces Eunice , a "living Omnitrix"
Aggregor kidnaps five powerful aliens from the Andromeda Galaxy to absorb their powers and reach the "Forge of Creation" to obtain the Ultimate Prize. This season introduces Eunice
Fans see the return of Elena Validus from the Alien Swarm movie and the introduction of Gwen’s cousin, Sunny. Season 3: The Dagon and Vilgax Finale
