­The cold case team digs in to discover what happened to a skateboarding prodigy, Nash Simpson, who went missing in the 1990s. After discovering that the body of a John Doe found in an abandoned warehouse was Nash, the team finally has some clues to go on. What they discover is that Nash had made plenty of friends and enemies after running away from New Jersey to Philly, and that he had ultimately been able to parlay his skills as a skateboarder in to a career. Nash had secured himself a sponsor and was on the way to becoming a star, but ultimately one of his new found junkie friends betrayed and killed him in order to secure his next fix.