Richard Stuart is a very wealthy man, thanks to his methods of 'assisting' certain people to advance in their careers. Richard however is blackmailing all of his clients and invites them every now and then to a poker game in Las Vegas. The game in reality is when Richard gets his money from his clients. David Benson's brother was killed thanks to one of Richard's schemes and, during one of the 'poker' parties David bursts in with a gun and attempts to shoot Richard but is overpowered and thrown out. Later on that night, Richard is shot with David's gun and David is arrested for the crime. David's young daughter Melanie had followed her father to Las Vegas and when David is arrested runs to Perry who is in town for a boxing match with Ken. Perry knows of Richard's methods and as he wants to know the truth sets out with Della and Ken to solve the mystery but Melanie wants to help too and gets herself in major trouble with one of the suspects... (thetvdb.com)