Avengers:
Endgame

Five years have passed since Thanos used the completed Infinity Gauntlet to eliminate half of all life in the universe — an event the survivors simply call the Blip. The world is hushed and grieving. Cities are half-empty. Nature has begun reclaiming urban spaces. The remaining Avengers — Steve Rogers, Natasha Romanoff, Bruce Banner, Thor, James Rhodes, and Nebula — meet at the Avengers compound, struggling to find purpose in a world that feels permanently broken.

Hope arrives in an unexpected form: Scott Lang (Ant-Man) emerges from the quantum realm, where only minutes passed for him while five years elapsed outside. He arrives with a desperate theory — could the quantum realm serve as a kind of time machine? Could they travel back, steal the Infinity Stones before Thanos ever collected them, and use them to undo everything? The plan is just wild enough to matter.

Steve and Natasha travel to recruit the two people they need most. Tony Stark — now living quietly on a lakeside cabin with his wife Pepper Potts and their young daughter Morgan — refuses at first. He has the life he always wanted; risking it terrifies him. But he can't stop thinking about Peter Parker. That night, he quietly cracks the math of time travel himself and rejoins the mission. Meanwhile, Thor is found in New Asgard in Norway — broken, overweight, and drowning in guilt and drink. Rocket and Hulk coax him back.

Clint Barton (Hawkeye), having lost his entire family in the Blip, returns from years of vigilante violence across the world. Nebula and War Machine round out the team alongside Bruce Banner — who has now fully merged his gamma-powered body with his intellect, becoming Professor Hulk.

The team splits into three groups and jumps to three key points in history to collect all six Infinity Stones. New York, 2012: Tony, Steve, Scott, and Banner target the Time Stone (held by the Ancient One), the Mind Stone (inside Loki's scepter), and the Space Stone (the Tesseract). The Time Stone mission succeeds; the Mind Stone mission fails spectacularly when a captured Loki escapes with the Tesseract — creating an alternate timeline.

Steve and Tony jump further back to S.H.I.E.L.D. headquarters in 1970, where Tony crosses paths with his own father Howard Stark — their brief, bittersweet conversation gives Tony the closure he never had. Steve steals a Tesseract sample and glimpses Peggy Carter through a window.

Vormir: Clint and Natasha race to claim the Soul Stone — only to discover the terrible price: one life must be willingly sacrificed. They fight over who gets to die for the other. Natasha wins. She falls. Clint returns with the Stone, weeping.

Asgard, 2013: Thor and Rocket retrieve the Reality Stone from a pre-illness Jane Foster. Thor manages to summon Mjolnir — proving to himself, in his lowest moment, that he is still worthy. Meanwhile, Nebula's neural network syncs with her 2014 past-self, alerting Thanos-of-2014 to the entire plan. He captures present-Nebula and sends his version of Nebula forward to infiltrate the Avengers.

Back in the present, Banner assembles a new Infinity Gauntlet from Tony's arc-reactor tech and wears it — only his gamma-irradiated body can withstand the energy long enough. With a grimace and a shaking hand, he snaps his fingers. Everyone erased by Thanos is restored. But in 2014, the past-Nebula has already activated the quantum tunnel — and 2014-Thanos, with his full army, arrives through it directly into the present.

Thanos destroys the Avengers compound. Steve, Thor, and Tony face him alone in the rubble. Thanos overpowers them one by one. He breaks Thor's hammer with his bare hands. He nearly kills Tony. Just when all hope appears lost, Steve Rogers lifts Mjolnir — and the thunder answers him.

Portals open across the battlefield — every hero restored by Banner's snap arrives at once. Doctor Strange's sling-rings, the Wakandan armies, the Ravagers, the Asgardians, the Sorcerers. Sam Wilson's voice crackles over the radio: "On your left." The greatest battle in the history of the MCU begins. Wanda Maximoff nearly dismantles Thanos alone in grief-fueled rage. Captain Marvel arrives from deep space and tears through his warship. A-Force. The Gauntlet passes from hand to hand.

Thanos calls for a full bombardment of the battlefield — willing to destroy everything. He picks up the Gauntlet. Tony lunges for it. In a split second, Tony uses his nanotech suit to secretly steal all six Stones and transfer them to his own armor. "I am Iron Man." He snaps. The gauntlet burns his arm black. Thanos and his entire army dissolve to ash.

Tony Stark dies from the energy of the snap. Pepper kneels beside him: "We're going to be okay. You can rest now."

Tony Stark's funeral is held at the lakehouse. Heroes from every corner of the MCU attend in silence. Natasha Romanoff's sacrifice is mourned separately, privately. Steve Rogers volunteers to return all six Stones to their original timeline. He doesn't come back through the quantum portal on schedule. Instead, an old man sits on a bench nearby — it's Steve, who chose to stay in the 1940s and live the life he never had with Peggy Carter. He passes his shield to Sam Wilson.

Peter Parker returns to school. Clint Barton calls his wife, alive again. Thor hands the leadership of New Asgard to Valkyrie and joins the Guardians of the Galaxy. The Infinity Saga is over.