Luke (Josh Peck) is a recent high school graduate who sees dealing weed as a solid summer job. A bit of a loner, he strikes up a friendship with his therapist (Sir Ben Kingsley), who he pays in weed. Method Man plays Luke's supplier. Olivia Thirlby plays the therapist's daughter who becomes involved with Luke. Mary-Kate Olsen plays one of Luke's 'clients'--a dread-headed stoner.