Magnum P.I. (S6, Ep 10 - Blood and Honour) (1985)

S6, Ep 10: Blood and Honour. Magnum is called back to service by Admiral Hawkes (Paul Burke), who has reason to suspect that someone at his base is leaking coded information. Unfortunately Magnum's prime suspect is Alex McPort (Simone Griffeth), the fiancée of Hawkes' son, Andy. Starring Tom Selleck, John Hillerman, Roger E Mosley, Larry Manetti, Paul Burke, Simone Griffieth, Jeff Yagey, Chris Mulkey, Peter Hanson, Terry Cook, Elissa Dulce, Scott Oughterson, Timothy Smith, John Elliott, Dennis Haysbert and Charlene Blaine.