What If... Ultron Won?" is the eighth episode of the American animated television series What If...?, based on the Marvel Comics series of the same name. It explores what would happen if the events of the Marvel Cinematic Universe (MCU) film Avengers: Age of Ultron (2015) occurred differently, with Ultron using the Infinity Stones to kill virtually all life in the universe after successfully transferring his consciousness into Vision's body. It also serves to set up the first season's finale, as Ultron finds a way to traverse to other universes (established in the previous episodes), threatening the balance of the Multiverse. The episode was written by story editor Matthew Chauncey and directed by Bryan Andrews. what if, what if ultron, what if episode 9, ultron what if, what if episode 8, age of ultron, marvel what if, what if ultron won, what if age of ultron, marvel's what if, infinity ultron, what if ultron death, what if episode 9 trailer, what if ultron win, ultron what if finale, ultron what if watcher, ultron what if scenes, what if finale ultron, what if ultron clip, what if ultron vs thanos, what if infinite ultron, what if finale