A Marine Corps helo has a midair collision with an unknown aircraft; all but the pilot survive. Harm and Bud investigate. People from a mysterious agency take control of the site, and Harm locks horns with them, but he solves the mystery.

A woman Navy ensign shoots and kills a Turkish colonel; she claims self-defense. Harm, Mac, and Bud investigate, and Harm defends her in a preliminary hearing. Later the admiral tells Harm more. Bud and Harriet take another step together.