Telepathic mutant Charles Xavier forms the first generation of the superhero team in the 1960s to avert the threat of nuclear war. Their battle with a Nazi war criminal manipulating the world toward conflict drives a wedge between Xavier and his ally Magneto, leading to them becoming deadly enemies. Superhero adventure prequel, starring James McAvoy, Michael Fassbender, Kevin Bacon and Rose Byrne.

Before Charles Xavier and Erik Lensherr took the names Professor X and Magneto, they were two young men discovering their powers for the first time. Before they were arch-enemies, they were closest of friends, working together with other mutants (some familiar, some new), to stop the greatest threat the world has ever known.