Marc Borgmann (Koffler), a young police officer, is on a training course for the riot control unit. He is struggling at the police academy, being somewhat behind his peers in his physical training. Cocky and self-assured, Marc does not initially get along with his roommate at the academy, Kay Engel (Riemelt). They have a physical confrontation during a training exercise, but afterwards Marc apologizes for his aggressive behavior and they become friends. The two begin jogging together regularly, and during one jog, Kay kisses Marc as they share a marijuana cigarette. Marc, taken aback, is reassured by Kay that it's just a joke. Marc is reluctant to jog again due to his own apparent conflicted attraction to Kay, but on Kay's insistence he goes on a run alone; Kay catches up to him, and, despite Marc's initial resistances, the two kiss and Kay gives him a handjob. Marc initially accepts the advances, but then runs away in confusion.