Magnum P.I. 2x13 "Mondays Are For Murder" Season 2 Episode 13 Promo Trailer HD - Magnum and TC go undercover as efficiency experts when a corporate manager is murdered and everyone in the office is a suspect. Also, Rick is curious why Higgins faked an injury to prevent her from investigating the case with Thomas, on MAGNUM P.I., Friday, January 10th on CBS.