Magnum, P.I. (1980)

S4E17 Let the Punishment Fit the Crime

A young woman enlists Magnum's help to track down her missing brother, cleverly maneuvering her way into a part in Higgins' musical that is being staged for a visiting British politician. As Magnum delves into the search, he uncovers layers of intrigue, while the woman juggles her dual objectives of family loyalty and theatrical ambition, leading to unexpected twists along the way.