The Fantastic Four: First Steps’ Galactus Story Is All Thanks To Loki Season 2 According To Major MCU Theory

A growing Marvel theory suggests The Fantastic Four: First Steps owes its Galactus storyline entirely to the events of Loki season 2. The trailer for the MCU timeline’s long-awaited Fantastic Four reboot teases the arrival of one of the MCU’s most terrifying cosmic threats, and theories are already connecting the dots back to the iconic Marvel series. If true, this theory brilliantly links two of the most important chapters in Marvel’s multiverse saga – and helps explain why the Galactus storyline is only happening now.

The MCU’s The Fantastic Four: First Steps is set in the 1960s and introduces Marvel’s First Family into the MCU for the first time. In a bold creative twist, the film takes place in an alternate Earth with a retro-futuristic aesthetic and a timeline largely untouched by the mainline MCU events. The teaser trailer showcases Reed Richards, Sue Storm, Johnny Storm, and Ben Grimm exploring deep space and dealing with mysterious cosmic consequences. A very compelling theory suggests that Loki season 2 may have predicated this storyline.

The Fantastic Four: First Steps Suggests Mister Fantastic Accidentally Summoned Galactus With His Research

Reed Richards Says It’s His Fault In The First Steps Trailer

The most striking moment in The Fantastic Four: First Steps trailer comes when Reed Richards, clearly shaken, says: “It’s my fault. I stretched the boundaries of space… and they heard.” The line is immediately interpreted as Reed blaming himself for summoning something powerful and dangerous through his experiments. The trailer implies that this is Galactus, who appears briefly – though it’s worth noting it could be someone else, such as Doctor Doom.

Regardless, this setup is classic Fantastic Four: Reed Richards is often portrayed as a genius whose intellect sometimes outpaces his caution. His curiosity and ambition can lead to devastating consequences, especially when meddling with powers beyond comprehension. In First Steps, it seems that his exploration into the edges of space may have sent a signal or opened a rift that alerted Galactus to the presence of their world.

Loki Season 2’s TVA Changes Explain Why This MCU Movie Storyline Is Only Just Happening Now

Loki Ended With Loki Saving The Multiverse


Loki using magic to protect a branching timeline in Loki season 2

According to a compelling theory, The Fantastic Four: First Steps is only happening now because the TVA – reborn in Loki season 2 – used to eliminate timelines where advanced multiversal or cosmic science emerged too early. In Loki season 1, the TVA pruned branches from the Sacred Timeline that veered toward multiversal instability. Any universe or individual that meddled too much with time or dimension-hopping was swiftly removed to prevent a multiverse war.

If Reed Richards’ experiments in the 1960s involved poking at the multiverse or breaching dimensional barriers (which they almost certainly do), then the TVA would have previously eliminated that entire timeline to keep things stable. This would mean that the Fantastic Four’s reality could not exist until after the TVA changed their purpose. At the end of Loki season 2, the TVA transforms from a multiverse-pruning bureaucracy into a multiverse-monitoring organization, no longer destroying timelines but instead protecting them.

Loki himself sacrifices his freedom to stabilize the World Tree – a new multiverse model that keeps all branches alive. As seen in ᴅᴇᴀᴅpool & Wolverine, the TVA now allows more complex and chaotic timelines to exist. So if the TVA stopped culling dangerous or too advanced timelines, the Fantastic Four’s universe – where Reed reached far into cosmic science and unwittingly signaled Galactus – could finally be permitted to unfold. Essentially, Loki made First Steps possible by rewriting the TVA’s rules and saving the multiverse.

Why Linking The Fantastic Four: First Steps & Loki Season 2’s Stories Would Be Great For The MCU

Loki Season 2 Was One Of The Greatest Entries In The Multiverse Saga


Tom Hiddleston As Loki Looking Over His Shoulder With A Green Multiverse Rift In The Background In The Loki Season 2 Finale

If Marvel Studios decides to make this connection between First Steps and Loki canon, it would mark one of the most rewarding and logical developments in the Multiverse Saga. Loki season 2 was one of the strongest entries in the MCU’s Phase 5 lineup, offering emotional depth, multiverse context, and a redemption arc for one of the franchise’s most iconic characters. By directly tying The Fantastic Four: First Steps to Loki‘s finale, the MCU could both honor Loki‘s importance and show how its narrative consequences reverberate across new stories.

It also helps anchor First Steps within the broader multiverse story arc while omitting the abandoned Kang narrative and some of the saga’s less favorable entries. The Multivese Saga has had its highs and lows, and by linking The Fantastic Four: First Steps with Loki, the movie only builds upon one of the saga’s most triumphant entries and essentially tidying up the convoluted MCU timeline.

Upcoming MCU Movies



  • Thunderbolts (2025) Official Poster

    Thunderbolts*







  • 01593277_poster_w780.jpg

    The Fantastic Four: First Steps







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    Avengers: Doomsday







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    Spider-Man: Brand New Day







  • Avengers: Secret Wars





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