Jim Carroll (Leonardo DiCaprio) is a high school basketball player. His life centers on basketball, and his dream is being a basketball star. Once in a while he gets stoned with his friends, and step by step, he falls into the dark world of crime and drugs. Once his mother expels him from the house, he goes into the streets of New York, and together with his friends they take drugs for which they steal, rob and even kill. As the time passes, Jim's situation becomes worse. It looks like he will never escape his drug addiction.