One decade after the events of X-Men: Days of Future Past, humanity remains divided on whether mutants are a threat – though, some progress has been made. Fortunate mutants flourish in safe-havens (such as Xavier’s School for Gifted Youngsters) but some people and parts of the world are less accepting – selling mutants into slavery, exiling adolescent mutants who struggle to control their abilities, and even (forcefully) experimenting on mutants who are, for one reason or another, useful in furthering scientific research as well as military operations. After the public takedown of Magneto in 1973, Charles Xavier and Mystique both continue their quest, separately, to make the world a safer place for mutants – but whereas Charles achieves his dream of building a school for mutants, it is Mystique that becomes a mythic hero for powered people around the globe – as she frees oppressed mutants and dismantles anti-mutant movements from the shadows. However, when an ancient power reemerges after several millennia, enlisting the help of powerful mutants for the purpose of freeing mutantkind from the shackles of humanity, Mystique and Charles must join forces one last time – as well as rely on a new generation of young heroes to save the world.