Detective Stone again crosses paths with Pup Clemmons, a drug dealer he knew from his days working undercover narcotics, when he investigates the murder of a college girl. When Pup's alibi is verified the detectives look to the host of a party the girl had attended and then to his mother. After learning that Riley was beaten up by drug dealers because she owes them for a kilogram of heroin Detective Stone tells her he is not helping her any more. When Pup later confronts Detective Stone he reveals that his is an undercover DEA agent and is needing Stone's help in a sting on some guys looking to claim territory in a drug war. The next morning, desperate for the money to pay her drug debt Riley shoots Detective Stone hoping to collect the bounty put out on him by the drug dealers whom he had arrested the night before. Detective Sanchez hears the shots and runs to the scene and shoots Riley.