Magnum, P.I. (1980): Season 4, Episode 2

4 - 2: Luther Gillis: File #521

When Magnum and old school private eye Luther H. Gillis encounter each other in a seedy hotel room with a dead drug dealer as they separately investigate the whereabouts of Nancy Perkins, a St. Louis runaway, they decide to team up to find the missing girl after the police burst into the room and arrest them on suspicion of murder.