Eight years ago a court-martial convicted a Marine corporal, Magida, for espionage and sentenced him to 20 years in prison; the admiral defended him. Magida has escaped, and he now takes the admiral as a hostage in his own office. Magida gets Bud and Sarah also into the admiral's office; he demands that Harm obtain the transcript of his trial, and he complies. At the direction of Magida, a mock trial takes place, retrying the same matter; Mack prosecutes, the admiral defends, and Bud judges. Webb and others add several interesting twists. Eventually the hostage situation becomes resolved, and justice prevails.
—DocRushing