Watch ‘Magnum P.I.’s Zachary Knighton make a signature Hawaiian cocktail with ET at the Sheraton Waikiki in Honolulu, Hawaii.
The midseason finale airs Sunday, April 23 at 9 p.m. ET/PT on NBC.
Is Magnum and Higgins' secret romance about to be discovered?
New episodes air Sundays at 9 p.m. ET/PT on NBC.