The convicted spy Jason Magida successfully escapes from Groton brig and his way leads him straight to Adm. Chegwidden, who was involved in his court-martial back then. Magida takes Chegwidden, Mac and Bud hostage. Claiming he was framed, he insists the three officers retry him. Harm, in between trying from outside to solve this situation with Webb's help, calls in a SWAT team and then has his hands full of keeping the team from killing Magida. Locations: Groton, Conn.; Falls Church

A Colombian drug lord wants to deal for the life of a Marine who was left behind when the covert mission to kidnap him went awry.

Harm goes undercover as a Marine gunnery sergeant to help Mac in her investigation of questionable Marine training methods and becomes a victim of unsafe maneuvers himself.

While undercover, Harm learns that the tough-as-nails officer in charge of Force Recon training, Capt. Koonan, introduces unexpected problems into the training missions as a means of teaching the men to react quickly to surprises during combat. In addition to testing the Marines' mettle, the method also doubles their chances of returning safely from combat. However, in the mission in which Harm is involved, the method backfires dramatically, leaving five men trapped in a training maneuver destined for a disaster that even Capt. Koonan can't reverse, and it's up to Harm to get the trainees -- and himself -- out safely.