When does What If...? return?

The series explores alternate timelines in the multiverse that show what would happen if major moments from the MCU films occurred differently. Jeffrey Wright stars as the Watcher, who narrates the series. The first season of What If...? premiered on August 11, 2021, and ran for nine episodes until October 6. The second season premiered on December 22, 2023, and released its nine episodes daily until December 30. A third season and a spin-off series titled Marvel Zombies are in development.
What If...? explores alternate timelines across the multiverse in which major moments from the Marvel Cinematic Universe (MCU) films occur differently. In the second season, following the formation of the Guardians of the Multiverse, the Watcher continues to explore more strange worlds.