All For One (2) Magnum, P.I. : Season 5 Episode 16

Conclusion of this two-part story. Magnum, Tyler and Higgins are held prisoner by the Vietnamese Major that has a reign of terror over Chong Ker. As Rick lays recovering from his wounds, T.C. works with a local he's befriended trying to repair an old helicopter for their escape, but it becomes apparent that Tyler has been deceitful about the true nature of the mission...