The future of seven seamen hang in the balance due to Lt. Singer's recommendation of court martial for all of them following a mishap on the ship. However, Singer's career could also be doomed if the father of her unborn child is someone on the Seahawk, and it's Harm and Mac's job to find out who it is. The problem is, the career-oriented Singer isn't talking, so Harm enlists the help of Lt. Manetti to do some sneaky behind-the-scenes investigating in order discover the identity of the father.
After being diagnosed with night blindness, Lt. Cmdr. Harmon Rabb, an F-14 Tomcat fighter pilot, is forced to change careers. Cmdr. Rabb chooses to join the Navy's Judge Advocate General (JAG) Corps. There he both defends and sometimes prosecutes Navy and Marine Corps defendants. He is sometimes assisted by fellow lawyer, Lt. Sarah "Mac" MacKenzie, and his other fellow JAG staff.
Many of Rabb's cases require him to both keep up his F-14 qualifications and travel the world, in order to bring justice to the cases he is trying.
Rabb must also deal with the fact that his father, also a former Navy pilot, never returned home after being held prisoner after he was shot down in North Vietnam. Rabb believing his father is still alive continues the search he has pursued to find his father, since his teens.