X-Men: First ClassSave

Auschwitz-Birkenau concentration camp, Poland, 1944. Rain on barbed wire. The same opening shot the franchise had used in X-Men (2000) — Bryan Singer's foundational visual signature for Erik Lehnsherr's character. A thin Jewish boy of twelve, Erik Lehnsherr (Bill Milner at this age), is being separated from his mother at the camp gates. As Nazi guards drag his mother away, the iron gate behind Erik begins to bend. Three guards are killed. Erik is restrained. The boy is then taken to the office of Klaus Schmidt — a Nazi 'race-scientist' who has been quietly studying genetic mutations across European camp populations. Schmidt is also a mutant himself; he simply hasn't told anyone yet. He has a brass coin on his desk and asks young Erik to move it without touching it.

Erik cannot move the coin under fear. Schmidt demonstrates how to. Schmidt then has Erik's mother brought into the office on the pretext of reuniting them. Erik is told that if he moves the coin in the next three minutes, his mother will live. Erik tries. He fails. Schmidt shoots his mother through the temple while Erik watches. The grief unlocks Erik's full magnetic abilities — he tears the office apart, kills Schmidt's two SS guards, and crushes the helmet of a passing Nazi colonel in the hallway. Schmidt himself escapes through a side door, deeply intrigued. The boy who can do this is exactly the kind of genetic specimen Schmidt has been hunting for his entire career.

Cut to: 1962. Geneva, Switzerland. Erik Lehnsherr (now Michael Fassbender, 35 years old, in a tailored gray suit) has been a global Nazi-hunter for sixteen years. He has tracked down and killed approximately forty former SS officers across South America and Europe. He is currently in a Swiss private bank where a former Auschwitz guard has been quietly laundering Nazi gold. Erik kills the guard, takes the gold, and learns the next link in the chain — Klaus Schmidt, who has been operating under the alias Sebastian Shaw, lives on a private yacht in international waters off the Argentine coast and runs a Buenos Aires-based mutant-supremacist organization called the Hellfire Club.

Meanwhile, in upstate New York. Charles Xavier (James McAvoy, 32 years old, in an Oxford-academic tweed jacket) has just defended his Oxford genetics doctoral dissertation on telepathy and human evolution. His sister Raven (Jennifer Lawrence, 21 years old, in her franchise debut), whom Charles has known since he was nine and she broke into his family's Westchester mansion as a homeless shape-shifting child, has been living with him at the family estate. Charles has been using telepathy to seduce women at Oxford bars; Raven has been concealing her natural blue scaled form using her shapeshifting abilities. The CIA, having heard about Charles's published research, recruits him to consult on a national-security case.

The CIA case: a covert special-operations group has been tracking Sebastian Shaw's Hellfire Club across Argentina and Cuba. Shaw is suspected of manipulating both the U.S. and Soviet governments toward the brewing Cuban Missile Crisis. CIA agent Moira MacTaggert (Rose Byrne) has been quietly observing the Hellfire Club's recruitment of young mutants for a planned 'mutant superiority' uprising. Shaw's lieutenants include Emma Frost (January Jones, telepathic diamond-skinned mutant), Riptide (Álex González, tornado-generating mutant), and Azazel (Jason Flemyng, teleporting demonic-red mutant). Charles, agreeing to help, is brought aboard a Coast Guard cutter monitoring Shaw's yacht in the Caribbean.

Charles and Erik meet for the first time aboard Shaw's yacht. Erik has just dropped into the Caribbean water and is using his magnetic abilities to pull the yacht's anchor toward his own body — attempting to capsize the vessel and drown himself along with Shaw. Charles, sensing Erik's telepathic distress from the Coast Guard cutter, dives into the water and pulls Erik to the surface. The two of them — Erik in shock, Charles soaked in seawater — climb back onto the Coast Guard vessel. Their friendship begins. Over the next forty-eight hours, they form an alliance. Erik agrees to help the CIA stop Shaw because Shaw is the same Klaus Schmidt who murdered his mother. Charles agrees to help because he believes peaceful collaboration between humans and mutants is possible.

The CIA establishes a covert research facility in upstate Virginia. Charles and Erik begin recruiting young mutants who could form the foundation of a counter-Hellfire team. Hank McCoy / Beast (Nicholas Hoult), a 19-year-old Harvard genetics prodigy whose mutation gives him oversized blue-furred feet, is the team's tech specialist. Raven joins as Mystique, having spent her entire life concealing her shapeshifting form and now embracing it openly. Sean Cassidy / Banshee (Caleb Landry Jones) can scream sonic blasts. Alex Summers / Havok (Lucas Till, the canonical comics-Havok being Cyclops's older brother) shoots concentric energy rings. Armando Muñoz / Darwin (Edi Gathegi) can adapt his body to any threat. Angel Salvadore (Zoë Kravitz, in her franchise debut) has wings and acid spit.

The young mutants train at the CIA's Virginia facility. Charles and Erik develop different teaching philosophies: Charles believes in nurturing each mutant's gift through gentle psychological encouragement; Erik believes in pushing each mutant to weaponize their abilities through controlled trauma. The training-montage sequences become some of the film's strongest character moments — particularly Hank's growing romantic-but-suppressed attraction to Raven, and Charles's quiet awareness that Erik is becoming a darker version of himself with each passing day. Hank develops a serum he believes will suppress his mutation (specifically, the large blue feet) without removing his enhanced intelligence and reflexes. The serum is meant to allow him to function in human society without prosthetic shoes.

The Hellfire Club attacks the CIA facility. Shaw, having tracked the X-Men recruitment effort, sends Azazel and Riptide to slaughter the training-team. The attack is devastating — Darwin is killed during the assault (his adaptive mutation cannot adapt to a continuous energy-attack), Angel defects to Shaw's side (he convinces her that the Hellfire Club offers more opportunity than the CIA), and the remaining team narrowly escapes. The young mutants flee back to Charles's family Westchester estate — the same mansion that would later become the X-Men's School for Gifted Youngsters. The mansion is approximately five hours north of Manhattan and has been unused by the Xavier family since Charles's adolescence. They will need to defend the mansion against another Hellfire attack within days.

Hank tests his suppression serum on himself in the Westchester laboratory. The serum produces the opposite of his intended effect — instead of suppressing his mutation, it accelerates his blue-furred form's evolution. Within hours, Hank has been transformed into the full blue-furred bipedal Beast form audiences would later recognize from X-Men (2000) and subsequent films. The transformation is permanent. Hank, devastated by his appearance, considers suicide before Mystique convinces him his new form is a kind of beauty. The two characters share one of the franchise's most-quietly-romantic moments. Hank decides to continue working with the team in his new form. He also decides to design a custom Blackbird jet to give the team its own transportation.

The Cuban Missile Crisis reaches its peak. October 16, 1962: U.S. reconnaissance photos confirm Soviet missile installations in Cuba. Sebastian Shaw has been quietly manipulating both the Kennedy administration and the Khrushchev government toward nuclear war. His specific theory: a nuclear exchange between the superpowers would wipe out approximately ninety percent of the human population while leaving mutants — who have superior genetic radiation resistance — to inherit the post-apocalyptic Earth. The X-Men, having identified Shaw's plan through CIA intelligence, prepare to intercept. The Blackbird jet (built by Hank) is operational. The team — Charles, Erik, Mystique, Havok, Banshee, Beast — heads for the Caribbean. They have approximately seventy-two hours to stop Shaw before the missile crisis triggers nuclear exchange.

The Cuban coast. Shaw is aboard his submarine — the Caspartina, an Argentine-flagged civilian conversion of a German U-boat — somewhere off the Cuban coast. The submarine is also a self-contained nuclear reactor that Shaw has been using to amplify his own absorptive mutation (Shaw absorbs energy and converts it into superhuman strength, longevity, and combat power). The X-Men's Blackbird jet locates the submarine via Charles's telepathic search. Erik raises the entire submarine out of the water using his magnetic abilities — the iconic shot of the steel vessel emerging vertically from the Caribbean surface became one of the franchise's defining single images. Charles enters the submarine via Erik's magnetic levitation. He encounters Emma Frost in the corridor, defeats her in telepathic combat, and locates Shaw in the central reactor chamber.

Charles and Erik confront Shaw together. Shaw has been wearing a special helmet (specifically engineered to block telepathic intrusion — comics-faithful to the canonical Magneto helmet design); Charles cannot enter his mind. Erik, however, can manipulate metal. He magnetically immobilizes Shaw, pulls the helmet off his head, and forces it onto his own. With Shaw frozen in place, Erik takes telepathic control of Shaw's body through Charles. The two of them — Erik wearing Shaw's helmet, Charles inside Shaw's mind — slowly push the same Nazi-era coin (the one Shaw had set on the desk in 1944 to demonstrate magnetic abilities) through Shaw's skull. The execution is methodical and ritualistic. Erik has been waiting eighteen years for this moment.

The final battle. Magneto, having killed Shaw, emerges from the submarine wearing Shaw's helmet. The U.S. and Soviet fleets — both having now detected the X-Men's intervention — are firing missiles at the Cuban coast. Magneto, in a single coordinated magnetic gesture, intercepts every missile mid-flight and redirects them all toward the X-Men's coastal position. He has decided that humans are an existential threat to mutant-kind and must be wiped out. Charles tackles him from behind. The two of them struggle on the beach. A misfired U.S. military bullet from a hovering helicopter pilot strikes Charles in the lower back. His spine is severed. He collapses on the sand. Erik, devastated but still committed to his vision, gathers the surviving mutants — Mystique, Emma Frost, Riptide, Azazel, Angel — and announces the formation of the Brotherhood of Mutants.

The film's epilogue. Charles, now permanently paralyzed and confined to a wheelchair, returns to his Westchester mansion with the surviving X-Men: Hank, Havok, Banshee. The mansion is being converted into Charles's School for Gifted Youngsters — the canonical Xavier Institute that audiences would recognize from X-Men (2000). Erik, having taken the name Magneto, has founded the Brotherhood with the surviving Hellfire Club mutants. The two former friends are now ideological enemies. Charles will spend the next forty years trying to integrate mutants peacefully into human society; Magneto will spend the next forty years preparing for the inevitable war he believes humans will launch. The film closes with Charles addressing his new students in the rebuilt mansion classroom — the moment the X-Men school formally begins.

Commercial and critical aftermath. X-Men: First Class grossed approximately $354 million worldwide on a $160 million production budget — modestly profitable but well below the X-Men franchise's typical commercial expectations. Critical reception was widely positive (Rotten Tomatoes 86%); critics praised Matthew Vaughn's directorial choice to make the film a 1960s Cold War spy thriller rather than a conventional superhero franchise installment. The film established James McAvoy and Michael Fassbender as the franchise's new lead actors. Both would return for X-Men: Days of Future Past (2014), X-Men: Apocalypse (2016), and Dark Phoenix (2019). Matthew Vaughn would not return to direct subsequent X-Men films; he departed the franchise to direct Kingsman: The Secret Service (2015) and its sequels.