The third act of Spider-Man: Homecoming pivots on one of the most celebrated plot twists in modern superhero cinema. After Peter successfully asks his crush Liz Allen to the Homecoming dance, he arrives at her suburban home to pick her up. The door opens to reveal that her father is Adrian Toomes—the Vulture.
During the drive to the dance with Peter and Liz in the back seat, Toomes puts together clue after clue: Peter’s recognizable voice, his habit of disappearing, and his connection to the Washington Monument incident. Upon dropping Liz off, Toomes draws a gun on Peter, acknowledges his identity as Spider-Man, and threatens to murder Peter and everyone he loves if he ever interferes with his operations again, granting him one pass because Peter saved Liz’s life in Washington.
Choosing duty over personal safety, Peter abandons the dance and tracks Toomes to his lair using his original, low-tech sweatshirt suit. Toomes uses his winged suit remotely to destroy the support pillars of the warehouse, collapsing tons of concrete onto Peter. Trapped and weeping in terror, Peter pulls strength from within and lifts the rubble off his back.
Peter intercepts Toomes as he attempts to hijack an automated Stark cargo plane transporting weapons from Avengers Tower. Their struggle crashes the plane onto the sands of Coney Island. Though Toomes’ flight suit becomes unstable and explodes, Peter dives into the flames to save Toomes’ life, webbing the defeated villain up alongside the salvage cargo for the authorities.
In the aftermath, Liz moves to Oregon with her mother due to the trial. Tony Stark, impressed by Peter’s selflessness, invites him to the Avengers compound, presenting him with the advanced Iron Spider armor and a press conference to announce his membership. Peter declines, choosing to stay grounded as a local hero. Stark accepts this maturity and returns his original upgraded suit to Peter’s apartment. The film concludes on a comic shock: as Peter puts on his suit with the mask off, Aunt May catches him from the doorway, screaming