Bullet Boy tells the story of Ricky, a young black male, struggling to escape his criminal past, peer group, and most importantly his sense of absolute loyalty. This loyalty leads him to pay back a debt owed to a close friend, despite warnings from his girlfriend, mother, and a leader of the local church, himself a man with a past. The result is an escalating pattern of violence between two gangs, with the eventual loss of three young lives.
Ricky's 12 year old brother, Curtis, is in turn fascinated and revolted by the revolver that Ricky brings home, and he shows it to his friend, also 12. The two of them treat it as merely an extension of a violent PlayStation game until Curtis inadvertently shoots his friend, wounding him in the chest. The film ends with a hopeful message when Curtis discards Ricky's revolver in the river.