What If Season 3: Every Marvel Alternate Universe Episode Ranked
What If Season 3 promises another deep dive into the infinite possibilities of the Marvel Cinematic Universe, once again challenging our perceptions of beloved characters and pivotal moments. The beauty of this animated anthology lies in its ability to take established lore and twist it into something entirely new, often yielding surprising emotional depth or thrilling action sequences. As we anxiously await the next installment, it’s the perfect time to look back at the previous two seasons and evaluate which alternate realities truly stuck the landing.
Ranking these episodes is a subjective exercise, but certain entries stand out due to their creative premise, flawless execution, sheer entertainment value, or profound impact on the overarching narrative (especially for the Guardians of the Multiverse). Here is a definitive ranking of every episode from What If…? Seasons 1 and 2, from the must-watch masterpieces to the slightly less resonant concepts.
The Pinnacle: Genre-Bending Masterpieces
These episodes weren’t just good; they redefined what a Marvel story could be, blending genres seamlessly and delivering peak emotional payoff.
1. What If… Killmonger Rescued Tony Stark? (Season 1, Episode 6)
This episode is the gold standard. It takes the core theme of Black Panther—legacy, isolation, and the burden of leadership—and applies it perfectly to Tony Stark. The idea of Killmonger being lauded as a hero in Wakanda, while simultaneously being manipulated by Ulysses Klaue, creates a chillingly plausible alternate timeline. The political maneuvering, the nuanced characterization of Killmonger as a pragmatic—though still dangerous—leader, and the incredible closing battle featuring a mechanized Iron Man suit are simply unmatched. It’s thrilling, tragic, and offers a superior resolution to many mainline MCU narratives.
2. What If… Nebula Joined the Nova Corps? (Season 2, Episode 7)
Season 2’s strongest contender, this episode delivers a stunning cyberpunk space opera. Seeing Nebula raised with love and purpose, becoming an honorable Nova Corps officer, offers incredible emotional weight, especially when she confronts Thanos. The visuals are stunning, and the exploration of identity—what happens when a character designed for suffering finds happiness—is handled with surprising maturity. It’s a complete, self-contained story that feels worthy of its own multi-episode series.
Highly Engaging Concepts that Delivered
These episodes took strong premises and executed them with style, often providing significant fan service realized in spectacular ways.
3. What If… Captain Carter Were the First Avenger? (Season 1, Episode 1)
The quintessential alternate reality. This established the entire premise of the series perfectly. Watching Peggy Carter step into the fully realized Captain America role, complete with a modernized uniform and thrilling battles, was immensely satisfying. While the conclusion felt slightly rushed compared to later episodes, its groundbreaking premise secures its high ranking.
4. What If… The Watcher Broke His Oath? (Season 1, Finale)
The finale that changed everything. It brought together an all-star team of survivors—the Zombie Hunter Spider-Man, Star-Lord T’Challa, Doctor Strange Supreme, and Captain Carter—to fight the universe-consuming Ultron-Vision. This episode successfully pays off the previous storylines and introduces the definitive concept of the Guardians of the Multiverse, setting a high bar for continuity within the anthology.
5. What If… Happy Hogan Saved Christmas? (Season 2, Episode 5)
A delightful departure from the high-stakes drama, this episode channels the spirit of classic holiday films while centering on the often-underrated Happy Hogan. It’s warm, genuinely funny, and features a charmingly chaotic team-up between him, Darcy Lewis, and Jimmy Woo trying to protect a group of orphaned children from terrorist threats. It’s pure comfort viewing done right.
Solid Entries with Great Moments
These episodes feature fantastic concepts or character work but might suffer from pacing issues or slightly less resonant conclusions.
6. What If… Iron Man Crashed Into the Phantom Zone? (Season 2, Episode 10)
A unique crossover with elements reminiscent of Doctor Who and Green Lantern: The Animated Series. Seeing Tony Stark trapped in a cosmic prison alongside villains like Hela and the Mandarin, only to use his intellect to unite them against a common threat, is fascinating. The idea of “re-education through shared trauma” is a potent sci-fi trope executed well here.
7. What If… Thor Were an Only Child? (Season 1, Episode 4)
This entry explores a much softer, more emotionally vulnerable Thor. Without Loki to push him, Thor grows up entitled, arrogant, and utterly unprepared for the realities of leadership. Jane Foster’s appearance is great, but the episode’s strength lies in showing Odin’s very real fear that an unchallenged heir would be unfit to rule Asgard.
8. What If… Odin Never Fought Surtur? (Season 2, Episode 6)
This one is a deep cut into Asgardian mythology. Showing a decaying Asgard ruling through bureaucracy rather than might is an interesting political angle. The conflict centers on Hela’s stagnation and Tyr’s attempt to curb the empire’s decline, proving that stagnation is often as deadly as outright destruction.
Good Concepts That Didn’t Quite Stick the Landing
These episodes had intriguing setups, but the execution sometimes felt rushed, or the emotional core wasn’t as strong as others.
9. What If… Captain Carter Fought the Mystery Men? (Season 2, Episode 1)
Kicking off Season 2 strong, this sees Captain Carter facing off against a collection of villains that mirror the Fantastic Four. While the action involving the powerful Ms. Carter is excellent, the episode relies heavily on introducing several new characters quickly, which dilutes the focus slightly compared to other character-driven installments.
10. What If… Doctor Strange Lost His Heart Instead of His Hands? (Season 1, Episode 4)
This is a fascinating psychological exploration. Instead of losing his nerve or dexterity, Strange loses his empathy, becoming a cold, calculating sorcerer determined to control all possible timelines to find the perfect one. While Strange Supreme is captivating, this episode directly sets up the Season 1 finale, making it feel slightly less self-contained.
11. What If… Zombies Invaded the Universe? (Season 1, Episode 5)
The zombie episode is thrilling horror, especially the tense sequence where the survivors infiltrate the S.H.I.E.L.D. bunker. However, the sheer tragedy of this timeline—with almost every major player being consumed—leaves little room for the clever improvisation seen in other episodes. It’s grim, but perhaps too relentlessly bleak to rank higher.
12. What If… Thor Were Raised by Yondu? (Season 2, Episode 3)
This is peak absurdity. A genuinely immature, party-loving Thor, raised by the Ravagers, is hilarious, especially when he butts heads with Star-Lord Quill. While fun, the episode is primarily a series of gags rather than a strong narrative arc, making it feel lighter than its peers.
The Ones That Didn’t Quite Define the Multiverse
These entries are perfectly serviceable but felt less impactful or original compared to the strongest offerings.
13. What If… Peter Quill Became T’Challa’s Ravager Recruit? (Season 1, Episode 2)
This episode boasts the fantastic T’Challa Star-Lord, who is charming and charismatic. The idea that T’Challa’s gentle influence humanizes Yondu’s Ravagers is a positive note. However, the central conflict over Ego feels slightly rushed, and the outcome is easily predictable once T’Challa’s presence is factored in.
14. What If… Kahhori Found the Darkhold? (Season 2, Episode 4)
Introducing the brand-new character Kahhori, this episode grounds the cosmic consequences of the Darkhold in a specific cultural narrative. While her powers and connection to the land are beautifully depicted, the episode struggles most with the challenge of building an immediate, deep attachment to a character we’ve never met before the main plot kicks in.
15. What If… Tony Stark Built the Hulkbuster in the Desert? (Season 2, Episode 8)
This episode plays out almost exactly like a streamlined version of Avengers: Age of Ultron, but with Tony and Banner relying on each other immediately. It’s a competent action piece, but it offers very little narrative deviation from established canon, making it less surprising than the other realities explored.
Looking Ahead to What If Season 3
The brilliance of The Watcher’s narratives proves that the MCU’s potential is truly limitless. Whether it’s exploring characters in entirely new genres, like the space opera of Nebula’s timeline, or delving into the nuances of leadership with Killmonger’s rule, What If Season 3 has a high bar to clear. Fans eagerly await which corners of the multiverse—perhaps exploring the fallout of Kang’s incursions or the mysteries of the Eternals—will be opened up next.
