A peace vigil honoring the fallen Professor X turns into a bloodbath when anti-mutant extremists known as the Purifiers launch a brutal assault on San Francisco's segregated neighborhoods. Three ordinary people—Aimi Yoshida, Adrian Luca, and Grant Alexander—discover their dormant mutant abilities in the midst of the violence, thrust into a conflict they never sought. Caught between the ideological divide of the X-Men and the Brotherhood of Mutants, each newcomer must navigate a fractured world where their decisions shape not only their own path but also determine which faction earns their loyalty and which mutants become allies or adversaries.