The X-Men are going to war in the first trailer for Apocalypse.

After the ancient mutant Apocalypse (Oscaar Isaac) reawakens in the 1980s, he grows dissatisfied with where mutants stand in the modern world. He recruits mutants, including Magneto (Michael Fassbender) and Psylocke (Olivia Munn), as his Four Horsemen to help him destroy the world in order to build a new one.

To stop the destruction of mankind, Professor X (James McAvoy), Mystique (Jennifer Lawrence) and Jean Grey (Sophie Turner) must lead a team of young X-Men in an all-out war.

X-Men: Apocalypse hits theaters on May 27.