This is the story of one of the X-Men’s most beloved characters, Jean Grey, as she evolves into the iconic Dark Phoenix. During a life-threatening rescue mission in space, Jean is hit by a cosmic force that transforms her into one of the most powerful mutants of all. Wrestling with this increasingly unstable power as well as her own personal demons, Jean spirals out of control, tearing the X-Men family apart and threatening to destroy the very fabric of our planet. The film is the most intense and emotional 'X-Men' movie ever made. It is the culmination of 20 years of 'X-Men' movies, as the family of mutants that we've come to know and love must face their most devastating enemy yet - one of their own. Jean Grey begins to develop incredible powers that corrupt and turn her into a Dark Phoenix. Now the X-Men will have to decide if the life of a team member is worth more than all the people living in the world.