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 .
Ben and the team race Aggregor across the cosmos to secure pieces of a map leading to the Forge of Creation.
Ben 10: Ultimate Alien episodes are available for purchase on digital platforms like , Apple TV , and Google Play . The complete series has also been released on DVD and is available on streaming services such as HBO Max in various regions. For viewers in Canada, the series can be found on Teletoon archives, while Cartoon Network in Latin America and India holds regional rights.
– Darkstar uses Charmcaster’s love to drain her magical energy in Ledgerdomain. Gwen and Kevin team up to free her.
Ben 10: Ultimate Alien marks a high-stakes era for the franchise, transitioning from the secrecy of Alien Force to a world where Ben Tennyson is a global celebrity. Over its , the series explores the power of the Ultimatrix , a device that allows Ben to "evolve" his aliens into more powerful forms. The Aggregor & Map of Infinity Arc (Episodes 1–20) The first 20 episodes focus on the Osmosian villain ben 10: ultimate alien all episodes
Ultimate Guide to Ben 10: Ultimate Alien – Every Episode, Arc, and Evolution
– Aggregor uses the complete map to enter the birthplace of Celestialsapiens (Alien X). A young, 10-year-old Ben from the past is accidentally dragged into the future to help save reality.
– Darkstar uses Charmcaster’s emotional vulnerability to take over her magical realm.
– Despite Ben, Gwen, and Kevin's best efforts, Aggregor successfully absorbs all five Andromeda aliens, transforming into an unstoppable hybrid. The Map of Infinity & Ultimate Kevin Arc (Episodes 11–20) The first season (Episodes 1–20) focuses on two
– Julie leaves for a tournament, but her replacement behaves suspiciously like a perfect robot.
The first season splits into two massive narrative halves. First, Ben faces off against a ruthless Osmosian villain named Aggregor. Second, he must deal with the heartbreaking fallout of his best friend losing control.
The series is typically categorized into three main production seasons, though broadcasting orders sometimes varied. : 20 episodes Season 2 : 12 episodes Season 3 : 20 episodes
The series is driven by two main story arcs: The complete series has also been released on
is the third installment in the massive Ben 10 franchise, picking up just weeks after the events of Ben 10: Alien Force . Running from 2010 to 2012, this series saw Ben Tennyson evolve from a secret teen hero into a global superstar, armed with the powerful Ultimatrix . The series consists of 52 episodes spanning three seasons. Season 1: The Aggregor and Ultimate Kevin Saga
For fans who want a complete Ben 10 viewing order, watch Ultimate Alien after Alien Force Season 3 and before Omniverse Season 1.
Ben 10: Ultimate Alien – The Complete Episode Guide and Series Overview
– Ben discovers that Vilgax is alive and being worshipped as the "Diagon" by Julie’s cult group.