Ultimate Spider-Man is about a 15 year-old high-school student named Peter Parker. On a field trip to Norman Osborn's lab, a spider that was genetically altered by Osborn's Oz formula, escaped captivity and managed to bite Peter on the hand, but was then killed by Peter's classmate Kong. After the bite Peter began to feel sick, but eventually he received the proportional strength of a spider, a spider sense, increased agility, and the ability to cling to walls (He also created web shooters that shot compressed liquid which becomes virtually unbreakable elastic webbing). A conflict in school lead to Peter breaking classmate Flash Thompson's hand. He decided to join a wrestling league and with his new powers he won money to pay for Flash's medical bill to avoid getting sued. On his way home, he passed up a deli that was getting robbed. He could have stopped the burglar but he decided to let him by, feeling that it wasn't his problem. When he got home, he was told his Uncle Ben was killed by a robber. He put on his mask and went out to find the robber, and Spider-Man was born.