After Spider-Man's identity is made public, Peter Parker's life takes an unexpected turn. With his personal life and that of his loved ones in danger, the young hero seeks a desperate solution and decides to turn to Doctor Strange, who offers him a spell that will erase the collective memory of people regarding his true identity. However, things do not go as planned, and instead of keeping it a secret, the spell unleashes multiversal chaos, attracting villains from other universes who have faced different versions of Spider-Man.
Now, Peter must confront iconic enemies like the Green Goblin, Doctor Octopus, and Electro, who have crossed the multiverse barrier. Amid this madness, the young hero is forced to make difficult decisions that will test his ethics and courage. As characters from different realities intertwine, old rivalries and new alliances are revealed, leading to an emotional climax in which Peter must learn what it truly means to be a hero.
With the help of his friends and their counterparts from other universes, Peter embarks on an adventure that challenges reality and tests his definition of justice, responsibility, and sacrifice. Set against a backdrop of thrilling action and moments of nostalgia, the film explores the growth and maturity of a young man who clings tightly to hope in times of adversity.