For the penultimate and for the first time multiverses are tying together in What If? Episode 8 "What if Ultron Won?". An action packed episode filled with Easter Eggs everywhere.

Marvel's What If? Episode 8 Synopsis

Executive Produced by: Bryan Andrews, A.C. Bradley, Brad Winderbaum with Kevin Feige

Head Writer: A.C. Bradley

Episode Written By: Matthew Chauncey

Episode Directed By: Bryan Andrews

One lost battle can change a multiverse!

Tony Stark’s tech experiment has gone rogue as Ultron, having taken the Mind Stone and Vision's vibranium body, defeats the Avengers and begins his mission for peace on earth.

After his nuclear obliteration of the human species, Ultron begins to bring peace to all corners of the universe along with the power of the remaining 5 Infinity Stones taken from a bisected Thanos. Eradicating planet after planet only Carol Danvers in space, and Clint Barton and Natashia Romanov on earth stand in his way. While Natashia and Clint look to an analogue piece of tech, in the form of Arnim Zola’s consciousness, to infiltrate and bring down Ultron and his hive; Carol decides to fight fire with fire but she is killed in a face-off deep inside the core of the planet Xandar.

With his mission in the universe complete, Ultron hears the voice of the Watcher. Discovering the existence of the multiverse, his mission is suddenly renewed - peace in our time and across multiversal space. On Earth Barton sacrifices himself to allow Natashia and Zola, now in the body of an Ultron drone, to escape Ultron’s drone army as Zola is unable to upload himself to the hive. Ultron is no longer just off-world but outside known space!

Being attacked by Ultron in the multiversal plane, the Watcher uses all his power to limit Ultron’s zeal to spill across universes and prevent their destruction. They battle across the multiverse until Ultron gains the upper hand. The Watcher flees and reluctantly accepts that he must intervene asking Stephen Strange Supreme for his help.

Marvel's What If? Episode 8 Cast

* The Watcher - Jeffrey Wright* Clint Barton/Hawkeye - Jeremy Renner* Strange Supreme - Benedict Cumberbatch* Arnim Zola - Toby Jones* Natasha Romanoff -