Future Ben (from the original series) comes back and immediately points out how flawed the Ultimatrix is. He fights Ultimate Albedo. The episode connects the entire original timeline and hints at Omniverse.
The finale’s destruction of the Ultimatrix leads directly into Ben 10: Omniverse, where Ben receives the redesigned “Omnitrix” (no “Ultra”). However, Ultimate Alien’s influence is felt throughout later series—especially the concept of evolved forms, which reappear in flashbacks and multiverse episodes. ben 10: ultimate alien all episodes
For fans who want a complete Ben 10 viewing order, watch Ultimate Alien after Alien Force Season 3 and before Omniverse Season 1. Future Ben (from the original series) comes back
If you don’t have time to watch Ben 10: Ultimate Alien all episodes back-to-back, prioritize these five: The finale’s destruction of the Ultimatrix leads directly
Below is a comprehensive log of all episodes organized by production and airing order.
When Ben Tennyson took off the recalibrated Omnitrix and discovered the secrets of the “Ultimatrix,” the world of Ben 10 changed forever. Ben 10: Ultimate Alien serves as the third major series in the franchise (following the original series and Ben 10: Alien Force), and it remains a fan-favorite for its darker tone, high-stakes storytelling, and the introduction of the “ultimate” evolution feature.
For fans looking to binge, re-watch, or verify their episode count, this guide covers Ben 10: Ultimate Alien all episodes—from the season premiere to the two-part grand finale. We’ll break down every arc, key transformations, and why this series still matters in the broader Ben 10 timeline.