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The Best Episodes of What If...? Season 1

Every episode of What If...? Season 1 ranked from best to worst. Discover the Best Episodes of What If...? Season 1!

Binge this in 5h 23mPeaking at 8.9/10

Taking inspiration from the comic books of the same name, each episode of this animated anthology series questions, revisits and twists classic Marvel Cinematic moments.

Airs on

Seasons3

Episode Rankings

  1. #1 Fan Favorite
    What If...? Season 1 Episode 1 - What If... Captain Carter Were the First Avenger?
    7.0/10(22053 votes)

    #1 - What If... Captain Carter Were the First Avenger?

    S1:E1

    When Steve Rogers is seriously injured, Peggy Carter becomes the world’s first Super Soldier.

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  2. What If...? Season 1 Episode 2 - What If... T'Challa Became a Star-Lord?
    7.7/10(19952 votes)

    #2 - What If... T'Challa Became a Star-Lord?

    S1:E2

    The rough-and-tumble space pirates known as the Ravagers abduct T’Challa instead of Peter Quill.

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  3. What If...? Season 1 Episode 3 - What If... The World Lost Its Mightiest Heroes?
    7.8/10(17693 votes)

    #3 - What If... The World Lost Its Mightiest Heroes?

    S1:E3

    Nick Fury struggles to launch The Avengers when candidates are targeted by a serial killer.

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  4. What If...? Season 1 Episode 4 - What If... Doctor Strange Lost His Heart Instead of His Hands?
    8.9/10(22922 votes)

    #4 - What If... Doctor Strange Lost His Heart Instead of His Hands?

    S1:E4

    A grief-stricken Doctor Strange uses the Eye of Agamotto in a dangerous effort to change the past.

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  5. What If...? Season 1 Episode 5 - What If... Zombies!?
    7.7/10(17319 votes)

    #5 - What If... Zombies!?

    S1:E5

    When The Avengers are infected by a zombie plague, surviving heroes search for a cure.

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  6. What If...? Season 1 Episode 6 - What If... Killmonger Rescued Tony Stark?
    6.6/10(14649 votes)

    #6 - What If... Killmonger Rescued Tony Stark?

    S1:E6

    An American soldier called Killmonger rescues Tony Stark when his Humvee is attacked in Afghanistan.

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    The 20 BEST Episodes of What If...?

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  8. What If...? Season 1 Episode 7 - What If... Thor Were an Only Child?
    6.4/10(15178 votes)

    #7 - What If... Thor Were an Only Child?

    S1:E7

    Thor, who never learned to be a good hero, throws an out-of-control intergalactic party on Earth.

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  9. What If...? Season 1 Episode 8 - What If... Ultron Won?
    8.9/10(17761 votes)

    #8 - What If... Ultron Won?

    S1:E8

    Natasha Romanoff and Clint Barton seek to destroy killer-robot Ultron following a cataclysmic event.

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  10. What If...? Season 1 Episode 9 - What If... The Watcher Broke His Oath?
    8.4/10(13834 votes)

    #9 - What If... The Watcher Broke His Oath?

    S1:E9

    The Watcher breaks his oath and recruits heroes from across the multiverse to battle against Ultron.

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Season 1 Ratings Summary

"What If... Captain Carter Were the First Avenger?" is the best rated episode of "What If...?" season 1. It scored 7/10 based on 22053 votes. Directed by Bryan Andrews and written by A.C. Bradley, it aired on 8/11/2021. This episode is rated 0.7 points higher than the second-best, "What If... T'Challa Became a Star-Lord?".