After the epic war with Thanos, the earth seems to have temporarily returned to peace. Pete (Tom Holland) returned to campus life. He had a good chat with his friends and had a girl he liked, but in his heart he still couldn't let go of his remembrance of Iron Man. On the way to Europe to study, Pete tried to find an opportunity to confess his love to the unique girl Michelle (Zendaya), but the successive appearance of elemental monsters disrupted his confession plan. In this process, Mysterio (Jake Gyllenhaal), who cooperated with S.H.I.E.L.D., stepped forward to repel the monster. Feeling that he was overwhelmed, Pete declined Nick Fury (Samuel L. Jackson) and was willing to hand over the heavy responsibility of Iron Man's successor to Mysterio. What he didn't expect was that even more terrible crises came one after another...