What If...? Season 9
The series explores alternate timelines in the multiverse that show what would happen if major moments from the MCU films occurred differently.
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What If...? Season 9 Full Episode Guide
Episode 1 - What If... Captain Carter Were the First Avenger?
First Aired: August. 11,2021
It explores what would happen if the events of the Marvel Cinematic Universe (MCU) film Captain America: The First Avenger (2011) occurred differently, with Peggy Carter taking the Super Soldier Serum instead of Steve Rogers and becoming the superhero "Captain Carter".