One possible alternate ending could be that Doctor Strange actually manages to defeat Thanos using his magic before he can snap his fingers. Strange could have found a way to trap Thanos in a time loop or a different dimension, thus preventing the mass destruction that occurred in the original ending.
Avengers Infinity War is largely based on the Infinity Gauntlet comic. Many key elements and plot points are drawn from it, but there are also some creative adaptations and additions to make it work for the cinematic universe.
It's a complex and epic tale. Thanos is on a mission to collect all the Infinity Stones to wipe out half of all life in the universe. The Avengers and other heroes unite to try and stop him.
The plot of Avengers: Infinity War involved a massive battle between Thanos and the Avengers. Thanos wanted the stones for universal balance in his twisted way, and the Avengers had to prevent his plan. There were many epic battles and emotional moments throughout the movie.
The storyline of Avengers: Infinity War is about Thanos' quest to collect all the Infinity Stones and use their power to bring balance to the universe, while the Avengers and their allies try to stop him.
Avengers: Infinity War tells the story of a universe-threatening battle. Thanos, a powerful villain, aims to balance the universe by eliminating half of all life. The Avengers and their allies must overcome impossible odds to stop him. It's full of action, drama, and heroic sacrifices.
If in the fanfiction's alternate ending, Thanos is defeated early, characters like Black Widow and Vision might not have to sacrifice themselves. Their relationships with other characters would continue to grow and develop in a positive way. For example, Vision could further explore his relationship with Wanda. Also, Tony Stark might not be as traumatized, and his relationship with Pepper could progress more smoothly without the weight of the snap on his shoulders.
The story of Avengers Infinity War Part 1 in 2018 is mainly about Thanos' quest to collect all the Infinity Stones. He travels across the universe, facing off against various heroes. The Avengers and their allies try to stop him from getting the stones as they know his plan to wipe out half of all life in the universe. It's a story full of action, sacrifice, and high - stakes battles.