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.

Gunslinger Jonah Hex (Josh Brolin) is appointed by President Ulysses Grant to track down terrorist Quentin Turnbull (John Malkovich), a former Confederate officer determined on unleashing hell on earth. Jonah not only secures freedom by accepting this task, he also gets revenge on the man who slayed his wife and child. Megan Fox plays a prostitute as well as Jonah Hex's love interst in the film.

King Leonidas of Sparta and a force of 300 men fight the Persians at Thermopylae in 480 B.C.