The culmination of a 21 movie saga ended with the release of Avengers: Endgame. Marvel Studios had to meticulously plan each and every step in making the Marvel Cinematic Universe in order to protect the Marvel continuity their most prized possession, and keep it intact so that it does not disturb the rest of the movies and events that have already happened. Avengers: Endgame did a splendid job in helping Marvel Studios achieve that. The plot was air-tight and everything fit right in place like the perfect puzzle coming together. But there were times when even the Endgame plot did not make sense. For starters, the Time Heist created more problems than it solved in the MCU. The plan went smoothly and the Avengers got the six Infinity Stones. It did end up creating a busload of timelines as a side effect though. Presenting – 10 Times the Avengers created an entirely new Timeline in Endgame’s Time Heist!
10. Thor summons his hammer in Asgard
Thor was a really sorry piece of work in Avengers: Endgame. Blaming himself for the tragedy that befell the universe after the Decimation event wiped out zillions of life forms just because Thor did not aim for the head, the God of Thunder fell into nihilistic depression and into the void of alcoholism. He was no longer fit and lost his physique. After he realized there is a chance to correct his wrongs, Thor went back in the past and landed in Asgard with Rocket via the Quantum Realm. Before having a long chat with his mother and taking the Reality Stone with him, he summoned Mjolnir to his aid and the Hammer responded, proving he is still worthy, despite all that depression. That move also led to the cool moment of Captain America picking up the hammer in the movie’s climax. But it did create an alternate timeline where the past version of Thor now had to face villains like Surtur, Malekith, Hela, and Ultron without his hammer.
9. War Machine hits Star-Lord in the head
As one of the funniest guys in the entire Marvel Cinematic Universe, Star-Lord (played by Chris Pratt) is an integral part of the MCU, as the leader of the Guardians of the Galaxy. A past version of Star-Lord entering the Temple of Power Stone and dancing to the tunes of “Come and Get Your Love” was part of War Machine and Nebula’s Time Heist. After War Machine knocked him unconscious, the Power Stone was taken by the duo and Star-Lord was left to his own devices. This creates a vividly dark timeline for Star-Lord, who never gets to meet the other Guardians thanks to not having the Power Stone with him and thus lives out the rest of his life as a name-less Outlaw. This is probably divine judgment brought down on him for his Infinity War debacle.
8. Ant-Man short circuits Tony Stark’s arc reactor
Tony Stark was a very strange creature between the events of The Avengers of 2012 and Avengers: Age of Ultron. He was so drowned in his own delusion that something and somewhere out there is out to get the whole world that he was ready to get to extreme lengths to keep the World Safe. When Ant-Man shrinks down to microscopic size and infiltrates Tony Starks’ arc reactor, he short circuits it that induces a heart attack in the past version of Tony. Many believe that Tony became so entrenched in PTSD after he almost died destroying the Chitauri Armada in The Avengers. But when you combine the fact that he nearly lost his life and then had a heart attack just a few hours later, it is enough to drive any man crazy.
7. Tony Stark steals the Space Stone
The Space Stone is the first Infinity Stone to be featured in the Marvel Cinematic Universe. The rest of the stones came later in the latter movies. So it is logical to think that the Tesseract had the longest impact on human history in the MCU since it was with mankind the longest. It was how Doctor Wendy Lawson invented the light speed engine that was supposed to end the Kree-Skrull War. That is also how Carol Danvers became Captain Marvel and ended up with the Kree Star Force under the leadership of Yon-Rogg. If Tony Stark stole the Tesseract before Shield could give it to Wendy Lawson for research, it means that there is no Captain Marvel in this timeline.
6. Captain America steals Pym Particles from Hank Pym’s Laboratories
Hank Pym was the 1960’s version of Tony Stark. He was also paranoid and wary of the outside forces meddling with his life (In Hanks’ case, it was the government trying to steal his research) like Tony was. When Captain America and Tony Stark travel to the 1960s, Cap was tasked stealing a few vials of Pym particles from Hank Pym’s laboratories. He succeeded but this left a gaping hole in the timeline. Hank Pym was already suspicious of the government trying to take away his research and use it to create weapons of war. When his Pym Particle vials go missing, putting the blame on a group of time travelling superheroes trying to resurrect half the universe would be the very last thing he would guess. He would blame the government for this and there is every reason to believe that he would stop making more Pym Particles. This means the new timeline has no Ant-Man!
5. Cap’s Hail Hydra moment
When Brock Rumlow and the other Hydra operatives disguised as Shield agents are taking the Mind Stone away, a time travelling Captain America stops them and takes the package away by saying “Hail Hydra”, thus letting the others know that Cap knows about Shield being compromised. The situation will get precarious for the Captain America of the past timeline. He would wake up and see that Hydra is still alive and are trying to contact him, since they believe that Captain America is a Hydra double agent. How will he deal with such a dangerous situation all alone?
4. Nebula of the future’s memories syncs with Nebula of the past’s memory drives
In a shocking turn of events, Nebula’s memory drives start syncing with that of the past, still, evil Nebula who still believes in Thanos. This is the reason Thanos of the past learns about the Avengers trying to travel through time and change its course. The videos that play also include Thanos being beheaded in Avengers: Endgame. Since now the Mad Titan knows how his death is going to happen, he will very well try to avoid it the next time. So that means that the first 15 minutes or so of Avengers: Endgame never happened in the new timeline.
3. Loki escapes with the Space Stone
One of the saddest moments in Infinity War was seeing Loki being strangulated to death by Thanos. In Endgame, we realize that there is a chance that Loki might still be alive in an alternate timeline. Iron Man and Ant-Man fail to get the Space Stone as planned and it ends up near the feet of Loki, who uses it to escape capture. So in this new timeline, the Norse God of Mischief is alive and kicking. The next set of events will probably explored in detail in the upcoming Disney+ Loki TV Series!
2. Iron Man snaps his fingers
The Avengers Endgame movie concluded with Iron Man getting all the six Infinity Stones and using it to rewrite history. Thanos and his forces are now decimated and the world is again a safe place. Except of course, there are repercussions to Tony’s Iron Gauntlet snap too. When Iron Man willed the Mad Titan and his forces away, he actually killed the 2014 version of Thanos. This means that there is now an alternate timeline that does not have Thanos trying to collect the Infinity Stones so Infinity War and Endgame never happened. What a dull timeline that would be.
1. Captain America has his last dance with Peggy
After Endgame came to a fitting conclusion, Captain America was supposed to go back in time to put the Infinity Stones right where they belonged to keep the past timeline intact. But he never returned. Captain America decided to stay back and marry Peggy Carter and start a family together. In the end, we see an older Steve Rogers who comes back to the same location to hand the mantle of Captain America to Sam Wilson, his rightful successor. In the alternate timeline where Steve Rogers is Peggy Carter’s husband, things would go wildly different than what happens in the original timeline.