Director Spike Lee examines the violent world of urban drug dealing through the eyes of Strike (Mekhi Phifer), a 19-year-old 'clocker', short for round-the-clock pusher. Strike agrees to kill a fellow employee of his boss Rodney Little (Delroy Lindo), an influential, popular drug lord. But when the hit goes down, it is Strike's moral, law-abiding brother Victor (Isaiah Washington) who confesses, shocking everyone. The detective assigned to the case, Rocco Klein (Harvey Keitel), doesn't believe Victor--the more that Klein, along with others in Strike's life, start putting the heat on, the more the clocker finds himself up against the wall. The question is: Who is the real killer.