At 17 Mike O'Donell was on top of the world; he was a basketball star and was a shoo-in for a college scholarship. But on what's supposed to be his big game where college scouts are checking him out, his girlfriend Scarlett reveals that she's pregnant. Mike decides to leave the game and asks Scarlett to marry him. During their marriage, Mike could only whine about the life he lost because he married her. So she throws him out. When he loses his job, he returns to the only place he's happy -- his old high school. While looking at his high school photo, a janitor asks Mike if he wishes he could be 17 again, and he says yes. One night while driving, Mike sees the janitor on a bridge and apparently jumps in and he goes after him. When he returns to his friend Ned's house, where he has been staying, he sees that he is 17 again. He decides to take this opportunity to get the life he lost.