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 archenemies, they were closest of friends, working together, with other Mutants (some familiar, some new), to stop the greatest threat the world has ever known.

In the process, a rift between them opened, which began the eternal war between Magneto’s Brotherhood and Professor X’s X-MEN.
The first class of X-Men, led by two very powerful mutants named Charles Xavier and Eric Lensherr, join together to stop a ruthless and powerful dictator from thrusting Russia and the U.S. into nuclear war. But Eric has his own agenda, and it soon rips him and his best friend apart.