An Avengers: Doomsday plot leak is making the rounds, and if it’s legit, it might have just revealed everything that goes down in the movie’s first act. We’re talking multiversal collisions, big team-ups, and the return of some very familiar faces.
According to new online scooper James Mack, the leak supposedly outlines how the film kicks off, setting the stage for the Russo Brothers‘ massive return to the MCU.
This is the movie where the Avengers, Fantastic Four, The New Avengers, and X-Men reportedly unite against Doctor Doom, played by none other than Robert Downey Jr.
Take it with the usual grain of salt, but let’s break down what this leak claims:
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Shuri discovers the Incursions, collisions between universes, and alerts Captain America (Sam Wilson), Wong, Hulk, and Captain Marvel.
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The Fantastic Four arrive on Earth-616, looking for Franklin Richards, who’s been kidnapped by Doctor Doom. Galactus is name-dropped, and Bucky seeks out Sam for help.
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A larger team forms, including Thor, Yelena Belova, M’Baku, Namor, and the Fantastic Four. They identify the incoming universe as the one where Monica Rambeau is stranded—also the home of the X-Men.
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Doom and Franklin are on that world, setting up a three-part mission: stop the Incursion, rescue Monica and Franklin, and take Doom down.
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America Chavez helps open the portal between worlds, though her role is reportedly limited to just that.
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A hero vs. hero battle erupts, but it’s short-lived. Eventually, both sides realize they’re being manipulated by a larger force, Doctor Doom, the TVA, and Loki all come into play.
Nothing in this rundown sounds far-fetched especially considering what the multiverse has already thrown at us in Loki, Doctor Strange in the Multiverse of Madness, and Spider-Man: No Way Home. But that might be exactly why some fans are skeptical. It’s almost too on-the-nose.
That said, the only official production tidbit comes from trusted insider Daniel Richtman, who noted: “They are currently filming scenes taking place on F4’s Earth like a baseball game.”
A small detail, sure, but it suggests that Marvel’s First Family will be getting some time on their own turf before crashing into Earth-616.
Avengers: Doomsday is being directed by Joe and Anthony Russo, working from a script by longtime collaborator Stephen McFeely. The film is slated for release on December 18, 2026, with Avengers: Secret Wars to follow on December 17, 2027.