The story is loosely inspired by the comic book. Story it is based primarily on contemporary developments in the Marvel Cinematic Universe.
Following the defeat of Thanos and the death of Tony Stark, the US government is working at all costs to detect and suppress all threats to humanity. He considers mutants to be one of the biggest threats here on earth. The task is assigned to Colonel William Stryker. He doesn't hesitate, and because of his resistance to mutants, he literally unleashes terror. His heartless approach, however, provokes resistance in the ranks of mutants. Professor Charles Xavier is desperate to prevent an inevitable conflict. However, a large part of the X-Men is gradually being added to Erik Lehnsherr alias Magneto. He doesn't hesitate and decides to go on the counterattack. At the same time, the repressed power of Phoenix begins to awaken in the young girl Jean Grey, thanks to the pervasive suffering of mutants.
The Avengers are trying to stop the violent actions of Magneto and other mutants. But soon they are confronted with the violence perpetrated by the troops led by William Stryker. The time has come when individual members of the Avengers will have to make up their minds which side they will join.
