At the start of the movie, Peter Parker, a very smart teenager, is accidentally bitten by a spider that had been mutated (changed) in a science study. This allows him to climb up walls, make spider webs come from his wrists, jump high, move fast and become very strong. Peter lives with his aunt and uncle. His Uncle Ben teaches him that "with great power comes great responsibility." He uses these powers to win a wrestling competition. However, he does not get paid what he thought he would get paid. A criminal steals a lot of money from the cashier and runs off. Peter does not try to catch the criminal, as revenge for not getting paid as much as he wanted to be. The criminal then steals Ben's car and Ben dies. From then on, Peter becomes Spider-Man and vows to fight crime, using Ben's words to their fullest.