Magnum heads to the "City of Angels" to deliver lawsuit papers to a small film company on behalf of Robin Masters, and during the trip befriends a stand-up comedienne. But when he finds her murdered in his hotel room, he investigates to find who is behind the killing. When he goes to deliver the subpoena to the film company, he strikes up a relationship with the attractive young attorney, and the pair work together to find the murderers. Meanwhile, back in Hawaii, one of the players on T.C.'s baseball team is mixed up with some small-time car thieves, and witnesses his friends being shot dead after stealing a car.