Avengers: Doomsday Plot Leak Explained - Everything We Just Learned About The Movie's Plot

Avengers: Doomsday Plot Leak Explained - Everything We Just Learned About The Movie's Plot

With a legitimate Avengers: Doomsday plot leak supposedly doing the rounds, we're explaining everything you need to know about that and what it potentially reveals about the upcoming blockbuster.

By JoshWilding - Jul 02, 2026 11:07 AM EST
Filed Under: Avengers: Doomsday

If you've been on social media today, chances are you've seen people talking about an Avengers: Doomsday plot leak. It started with YouTuber John Campea confirming the legitimacy of at least one that's done the rounds online, and there are even claims that it's been available for months.

While absolutely nothing is confirmed—and likely won't be until we sit down to watch the movie this December—the leak Campea is referring to seems to be one we shared on the site months ago.

As well as seemingly being the source of many social media "scoops," this (mostly) lines up with what we've seen in official material and various footage leaks, all from after this plot breakdown first did the rounds. 

It's worth noting at this point that some big changes have reportedly been made during reshoots, including Loki's role. The "canon" idea may have also been tweaked, while there are also some characters and plot points missing. 

Back to the leaked footage, it pointed to Doctor Doom's villainous nature being revealed when he pits the downed Sentinels against the Avengers, X-Men, and Fantastic Four. In this leak, it doesn't happen until Steve and Thor realise that Victor Von Doom has attacked the TVA and killed Loki.

Perhaps the bigger issue is that elements of Avengers: Doomsday sound extremely similar to Avengers: Infinity War. Once again, the movie ends with the villain standing victorious, suggesting the Russo Brothers are sticking to what they know works with this one. 

Even if this isn't the real plot leak that Campea is referring to, major Avengers: Doomsday details are out there, and the floodgates may be about to open.

As always, stay tuned for the latest Avengers: Doomsday updates as we have them.

This avengers Doomsday plot is real confirmed by John Campea
by u/sidmis in LeaksAndRumors

Avengers: Doomsday stars Chris Evans, Chris Hemsworth, Anthony Mackie, Winston Duke, Tom Hiddleston, Sebastian Stan, Letitia Wright, Paul Rudd, and Robert Downey Jr. Wyatt Russell, Simu Liu, Tenoch Huerta Mejia, Mabel Cadena, Florence Pugh, Danny Ramirez, David Harbour, Hannah John-Kamen, Lewis Pullman, India Rose Hemsworth, and Wesley Holloway all make their Avengers franchise debuts.

The Fantastic Four: First Steps leads Pedro Pascal, Vanessa Kirby, Ebon Moss-Bachrach, and Joseph Quinn join them, as do X-Men franchise stars Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, James Marsden, with Deadpool & Wolverine star Channing Tatum. 

The Russo Brothers direct Avengers: Doomsday and Avengers: Secret Wars from a screenplay by Stephen McFeely, with whom they previously collaborated on the Avengers and Captain America franchises. The movie is produced by Kevin Feige, Louis D'Esposito, and Jonathan Schwartz, with Callum McDougall serving as executive producer.

Avengers: Doomsday is set to be released on December 18.

About The Author:
JoshWilding
Member Since 3/13/2009
A lifelong comic book fan who grew up on Spider-Man: The Animated Series in the '90s, Josh Wilding has been contributing to ComicBookMovie.com since 2009.

While he's also written for websites like Batman-News, HeyUGuys, and WhatCulture, Josh is CBM's Rotten Tomatoes-approved critic and the site's #1 contributor with nearly two decades of experience covering film and TV news (including interviews with Tom Holland, Chris Pratt, Gary Oldman, Halle Berry, Jon Bernthal, Tom Welling, and hundreds more).

Based in the UK with his wife, Josh is also an avid WWE and Formula 1 fan and writes about those passions on CBM's sister sites, TheRingReport.com and FullThrottleHQ.com. Favourite superhero? Spider-Man. Favourite pro wrestler? CM Punk. Favourite F1 driver? Max Verstappen.
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HashTagSwagg
HashTagSwagg - 7/2/2026, 11:28 AM
Killing Loki again sounds very been there, done that.
Bucky74
Bucky74 - 7/2/2026, 11:45 AM
@HashTagSwagg - And killing Steve’s son also sounds way too dark and would ruin the tone of these films. There’s dark, and there’s killing an innocent child dark. Don’t get me wrong, I believe this leak, but I think that plot point is awful (unless it’s a truck and Doom wants all the children for Battleworld or something).
themawisdead
themawisdead - 7/2/2026, 11:53 AM
@HashTagSwagg -

right. i have a tough time believing that to be true when there are other ways Loki can be used in just the SW 2015 version of the story.
Hobmoblin
Hobmoblin - 7/2/2026, 1:01 PM
@HashTagSwagg - wouldn't it be more satisfying for Thor to reunite with his brother, who is now the hero he always hoped he could be? Guys in the audience would be thinking "that's like mu cousin Chet who quit heroin and got a job at IBM"
JustAWaffle
JustAWaffle - 7/2/2026, 2:15 PM
@HashTagSwagg - We’re gonna need another Loki

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skyshark03191
skyshark03191 - 7/3/2026, 11:36 AM
@Hobmoblin - this is the same company that didn’t give us Luke, Han, and Leia’s reunion after waiting over 30 years.
bobevanz
bobevanz - 7/2/2026, 11:30 AM
So John had casting news, that was debunked. Now he's got the whole script leak. And if it's true it's terrible. So what the [frick] are we even doing here?
ProfessorWhy
ProfessorWhy - 7/2/2026, 11:44 AM
@bobevanz - I know what you're doing here. Constantly whining and or shrieking. Take a nap or something,@crackerbarrel
Bucky74
Bucky74 - 7/2/2026, 11:48 AM
@bobevanz - I agree that it mostly sounds bad and it seems the Russo’s learned the wrong lessons from Infinity War (like, “hey, let’s just go dark and kill everyone “)
XRayCat
XRayCat - 7/2/2026, 11:48 AM
@ProfessorWhy - Don't mind him, he just has a little sand in his vagina.
MarvelousMarty
MarvelousMarty - 7/2/2026, 11:40 AM
Jesus, we know the plot, enough already.
marvel72
marvel72 - 7/2/2026, 11:47 AM
Killing Loki again,can't wait to see that again.
ObserverIO
ObserverIO - 7/2/2026, 4:39 PM
@marvel72 - ikr, what is he Michelle Pfieffer's Catwoman?!
themawisdead
themawisdead - 7/2/2026, 11:47 AM
having read this leak before, i think elements of it are true but not the entire thing. just seems like there's a lot missing.

like, how did Doom gain access to the TVA or Loki in order to kill them?

why would Steve of all people put his trust in Doom who supposedly already has a checkered history with the F4 in their universe?

there's no real presence of all of the other characters and what they're doing.

nothing about Wakanda or Tolucan is mentioned.
themawisdead
themawisdead - 7/2/2026, 11:56 AM
@themawisdead -

& i just outright don't believe that the Russos and McFeely would not dig into the moral quandry of destroying worlds as presented in SW '15.

there's way too much dramatic meat on the bone to relegate it to just something the alt X-Men were doing and not have our heroes face the same dilemma.
ObserverIO
ObserverIO - 7/2/2026, 4:41 PM
@themawisdead - "Why would Steve of all people put his trust in Doom who supposedly already has a checkered history with the F4 in their universe?"

A recent rumor suggested that Reed and Doom's history is that they BFFs forever. No bad blood, no checkered history, nothing.
SethBullock
SethBullock - 7/2/2026, 11:59 AM
Plot leak is absolutely terrible.
TheJok3r
TheJok3r - 7/2/2026, 12:00 PM
Hasn't this plot, or elements of it, been going around for a couple of years now ?
CaptainDC
CaptainDC - 7/2/2026, 12:03 PM
I want to know (or maybe I don't) where we see Doom is explained to be Tony Stark, or not. Given the casting and announcement, that has to mean something.
WruceBayne
WruceBayne - 7/2/2026, 1:35 PM
@CaptainDC - Doom looking like Stark has to be a big part of this movie. It was said Doom is NOT a variant of Stark but I wouldn’t mind if he was. This variant gravitated towards magic other than technology, yeah… I’d be ok with that.
ShimmyShimmyYA
ShimmyShimmyYA - 7/2/2026, 1:52 PM
@WruceBayne - it’s a stunt casting that’s all
WruceBayne
WruceBayne - 7/2/2026, 1:56 PM
@ShimmyShimmyYA - I get it. They’re banking on RDJ nostalgia. But they have to realize how high these budgets get just by casting him. They have to be paying him at least 100 million to play Doom and that’s ridiculous.
Pimpanzee
Pimpanzee - 7/2/2026, 3:27 PM
@CaptainDC - I need you to explain to me why Doctor Doom actually being Tony Stark is such a good idea, despite the fact that it ruins both characters and makes the highly-paid actor look like a dipshit, that you WILL NOT LET IT GO
Pimpanzee
Pimpanzee - 7/2/2026, 3:29 PM
@WruceBayne - Doctor Doom wears a mask, under which his face is hideously, unrecognizably scarred. What part of this do you not understand?
WruceBayne
WruceBayne - 7/2/2026, 5:01 PM
@Pimpanzee - sooooo are you saying RDJ won’t be recognizable under his Doom mask? If that was the case then why cast RDJ? I definitely see what part YOU don’t understand.
ShimmyShimmyYA
ShimmyShimmyYA - 7/2/2026, 5:50 PM
@WruceBayne - they’re assuming this makes close to Endgame money to offset
CaptainDC
CaptainDC - 7/3/2026, 9:21 AM
@Pimpanzee - I need you to understand that my comment has nothing to do with whether the casting is a good idea or not.

Once you understand that, I also need you to understand that whether you like it or not RDJ is playing Dr Doom. So at this point, let's just accept it and see how it plays out.
Pimpanzee
Pimpanzee - 7/23/2026, 1:33 AM
@WruceBayne - I'm saying RDJ won't be showing his face as Doom, because Doom wears a mask, and, under that mask, his face is disfigured. The reason this is happening is that RDJ wanted to come back to the MCU, after failing to create his own franchise, but he didn't want to tarnish the audience's love of the character he already played in the MCU. So, they figured out a way that he could come back, but not ruin Tony Stark - by playing a character who never shows his face and has a weird accent he can make up. Now, why you think turning that character into Tony Stark would be a good idea the audience would enjoy is simple - you're a [frick]ing moron.
Pimpanzee
Pimpanzee - 7/23/2026, 1:37 AM
@CaptainDC - I need me to understand what any of this response means. I was talking about whether or not RDJ is playing Tony Stark, not whether he was miscast as Doom. What the [frick] are you wasting my time with here? Is this even a response to what I [frick]ing typed? ASSHOLE!
Oberlin4Prez
Oberlin4Prez - 7/2/2026, 12:23 PM
Imagine being the average Joe who watched literally none of shows or maybe only a few of the movies since endgame and all this crazy stuff is happening, it’s like “when did this happen”
FleischerSupes
FleischerSupes - 7/2/2026, 12:24 PM
Killing off Tobey's Spider Man at the order of Xavier, then everyone else. Sounds like a real crowd pleaser. It's just out of touch enough to be true.

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WruceBayne
WruceBayne - 7/2/2026, 1:51 PM
@FleischerSupes - what stakes do you give the heroes? If the incursion can’t be stopped then it’s survival of the fittest. You can’t hug this problem away like they did The Sentry
FleischerSupes
FleischerSupes - 7/2/2026, 3:38 PM
@WruceBayne - Any scenario where Doom imperils all their worlds and they just have to team up to stop him would be fine. It's the characters not the plot that really matter anyway. Regardless I'd pretty much do anything before I'd kill off one of the most popular versions of one of the most popular children's heroes ever on screen, by another hero, at the beginning of my movie.
MuadDib
MuadDib - 7/2/2026, 12:28 PM
Wolverine dies to start the movie? Awesome! Unfortunately he’ll be back for Secret Wars, I’m beyond ready for Jackman to move on from the role.

This entire Doom movie is interesting, but Secret Wars is what I’m excited for, as it will truly set us on the course moving beyond these movies.

Luke8
Luke8 - 7/2/2026, 12:29 PM
If Tobey dies, I walk.
MMFRESHSW2
MMFRESHSW2 - 7/2/2026, 12:50 PM
@Luke8 - BYE BYE
Luke8
Luke8 - 7/2/2026, 1:44 PM
@MMFRESHSW2 - ✌️

This sounds like it was written by a five year old.
Yellow
Yellow - 7/2/2026, 2:07 PM
@Luke8 - Tobey is like 60 or something, let him rest already
Luke8
Luke8 - 7/2/2026, 3:32 PM
@Yellow - He’s 51.
Pimpanzee
Pimpanzee - 7/2/2026, 3:32 PM
@Luke8 - "If Toby dies, I walk." Clearly written by a profoundly evolved adult who has come to understand what's important in life.
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