Carson doesn't have any friends. He is a tall, skinny, white, nerd high-school kid that lives in the ghetto and is trying to make a new friend group. He starts skateboarding and meets a group of ghetto skaters that he quickly becomes close with. He learns to skateboard with the help of his new friends and realizes how skateboarding isn't a choice, it's a lifestyle.
(All of the italics are the characters thoughts in the moment.)
