SinceΒ The Amazing Spider-Man 3 (2016) was never officially made, Iβve created a detailed summary based on rumored storylines, early concepts, and fan speculation about what the canceled sequel might have been. After the heartbreaking death of Gwen Stacy, Peter Parker is devastated, struggling to cope with the immense guilt and emotional toll of losing the love of his life. He distances himself from those around him, questioning whether being Spider-Man is worth the suffering it has caused. Crime in New York surges in his absence, and the city, once inspired by its hero, begins to lose faith. However, Peter soon realizes that his responsibility as Spider-Man cannot be ignored, and he forces himself to return to his duties. At the same time, Harry Osborn, now fully transformed into the Green Goblin, is confined to Ravencroft Institute but continues orchestrating a larger plan. With Oscorp still in operation under the control of sinister forces, a new wave of villains emerges. One of Oscorpβs secret projects, led by Dr. Otto Octavius, is gaining momentum, and experimental research involving the enhancement of criminals threatens the city. Meanwhile, Peter crosses paths with Felicia Hardy, a skilled and cunning woman with a mysterious past, who begins operating under the alias Black Cat. As their connection grows, Peter finds himself drawn to her, though the pain of Gwenβs death still lingers.
As Peter investigates Oscorpβs growing influence, he uncovers shocking revelations about his own family. Hidden within Oscorpβs archives is evidence suggesting that his father, Richard Parker, may still be alive, having survived the plane crash that was believed to have killed him. His secret research, buried deep within a hidden laboratory, holds the key to defeating the growing threat of enhanced villains. However, before Peter can uncover the full truth, he is forced into battle as Harry Osborn executes his master plan. Having allied with a group of dangerous criminals, he forms the Sinister Sixβa powerful team consisting of Green Goblin, Doctor Octopus, Rhino, Vulture, Mysterio, and Kraven the Hunter. The villains launch an all-out assault on Spider-Man, forcing Peter into the fight of his life. With the city under siege, Peter faces overwhelming odds, relying on his intelligence and agility to survive. Black Cat becomes an unexpected ally, helping him navigate the chaos, but their partnership is complicated by her own hidden motives. Meanwhile, Harry taunts Peter with revelations about Oscorpβs role in his parentsβ fate, further shaking his resolve.
The climactic battle is an explosive showdown between Spider-Man and the Sinister Six across New York City. In a desperate struggle, Peter takes on each villain, using every ounce of strength and strategy he has. With Black Catβs help, he manages to weaken their forces, but not without suffering severe injuries. The final confrontation between Peter and Harry is deeply personal, as years of friendship and betrayal collide in one last brutal fight. In a shocking twist, Harry meets a tragic end, and Oscorp is left in ruins. However, victory comes at a costβPeter is left questioning whether he can continue being Spider-Man, knowing that those he loves will always be at risk. In the aftermath, he visits Richard Parkerβs secret laboratory and finds incomplete research on a mysterious black substanceβa potential hint at the symbiote, teasing the arrival of Venom in a future installment. As the film ends, Peter stands atop a skyscraper, looking out over the city, knowing that his journey as Spider-Man is far from over. Though The Amazing Spider-Man 3 was never made, its potential storyline remains one of the greatest "what if" scenarios in the Spider-Man franchise.