An intruder shoots three Navy people, killing two. One of the dead is a friend of Harm, who protects his reputation. Webb, counter-espionage, and disinformation are involved; Bud solves it. Mac and Renee return to town; Mac leaves again.

During a UN peacekeeping campaign a Marine captain, exceeding written rules of engagement, orders his team into an ambush, which kills six Marines. Sturgis prosecutes, and Harm and Bud defend. Mac investigates an unlikely peeping tom.