The plot, initially set in 1992 after a prologue with a tragic event in Jean Grey's childhood back in 1975, continues with the First Class set of mutants and involves a presidentially sanctioned trip into space in order to rescue a space shuttle. Jean Grey (Sophie Turner) commits an act of heroism in trying to keep the space shuttle together as the crew is rounded up to safety, absorbing a massive wave of energy that should have easily taken her life. She ends up surviving the ordeal, much to everyone's relief.  But something is a bit off with Jean, finding herself with enhanced senses, and growing even more powerful than she had ever been before.  Exhilarating at first, but now she's becoming increasingly unstable, scared she's beginning to lose control to her new nature, with an internal fight going on that is an even bigger match than the external one that involves her in a battle with fellow mutants who are trying to contain what is rapidly becoming the most powerful, perhaps even unstoppable, mutant of all. Simon Kinberg writes and directs.