Today Chris and Daniel recap episode 8 of MARVEL's What If...? This episode is titled "What If... Ultron Won?"

Summary:

Ultron, having taken the Mind Stone and Vision's vibranium body, has defeated the Avengers and launched a global nuclear holocaust, killing most of humanity. Thanos appears on Earth to complete the Infinity Gauntlet, but Ultron bisects him, obtaining the rest of the Infinity Stones and using them to create a massive drone army. Ultron wipes out almost all life in his universe before hearing the Watcher and discovering the multiverse. He attacks the Watcher in his multiversal observatory. Clint Barton and Natasha Romanoff, survivors of Ultron's universe, find a copy of Arnim Zola's consciousness in Siberia. They upload Zola into a drone body to try to destroy Ultron's hive mind, but this fails because Ultron has left their universe. Barton sacrifices himself to allow Romanoff and Zola to escape the other drones. Ultron battles the Watcher across different universes until the Watcher flees to Strange Supreme's collapsed universe to ask him for help. Ultron assumes control of the Watcher's observatory and proclaims himself invincible.