The film opens twenty years in the past. A young Jean Grey, terrified and powerful, sits beside her parents in a car. When her psychic powers manifest uncontrollably, she accidentally unleashes a telekinetic wave that causes her mother to suffer a fatal brain aneurysm. Professor Charles Xavier arrives, gently containing the screaming child. He takes her to his school, promising to help her build psychic “walls” to contain the unimaginable power within her.
The Phoenix, confused and terrified, fights to regain control. “Save me,” she whispers in Jean’s voice. Wolverine knows there is only one way. His adamantium claws can pierce her before she unleashes another wave. He loves her. He is the only one who can do it. x-men 3
With tears in his eyes, he drives his claws into her heart. Jean Grey smiles, thanks him, and dies in his arms. The Phoenix is extinguished. The film opens twenty years in the past
Xavier refuses to abandon his student. He steps forward, reaching into her mind. But the Phoenix awakens fully. As Magneto watches in awe and horror, Jean unleashes a wave of psychic fire. Professor Charles Xavier, the heart of the X-Men, disintegrates atom by atom into the wind. His empty wheelchair rolls away. “Save me,” she whispers in Jean’s voice
Meanwhile, on the other side of the bridge, Magneto sees the cure as a declaration of war. He rallies a brotherhood of angry, disenfranchised mutants at his forest encampment, declaring, “They have built a weapon to destroy us. We will not go quietly.”
The central tragedy unfolds at Alkali Lake. Wolverine and Storm escort a grieving Cyclops to the site where Jean Grey supposedly died in X2 . Cyclops, still hearing Jean’s psychic echo, follows it into a crystalline cavern. There, he finds her — naked, alive, but utterly changed. The psychic “walls” Xavier built have crumbled. The rage and power of the Phoenix, a primordial alter ego Jean suppressed her whole life, has broken free.