A Navy lieutenant ostensibly blows a whistle on an allegedly defective high-tech combat system; Mac helps him to resign, but she discovers his dishonest plot, and she helps justice to prevail. Harm meets a little old lady by accident.

A Navy pilot drops a bomb on a British position, killing three soldiers and injuring others. In a court-martial he faces charges of involuntary homicide and dereliction of duty. Mac and Bud prosecute, Sturgis defends, and Harm presides.