While a Marine unit delivers relief supplies to a Nicaraguan beach (by using a Navy air-cushion landing craft), a mob becomes unruly; while a corporal takes part in crowd control, he hits a local man with his M-16; the Marine faces a court-martial for involuntary homicide; Mac prosecutes, and Greg and Tali defend; the trial ends on a surprise note. The general decides to conduct the annual JAG conference in San Diego; he leaves Harm in charge. Harm receives word that Mattie has become involved in an aircraft collision on the ground in bad weather; he goes to her in a hospital; she remains in a coma; the outlook is uncertain and discouraging; her father goes off the wagon.
—DocRushing