Watch Magnum P.I. Season 1 Episode 4 online via TV Fanatic with over 1 options to watch the Magnum P.I. S1E4 full episode. Affiliates with free and paid streaming include Amazon.
On Magnum P.I. Season 1 Episode 4, Thomas is arrested as the main suspect after an art connoisseur, who had hired Magnum to test his security, is murdered.