As Harm considers his future at JAG, he learns that Charlie Lynch - the ex-Navyman responsible for the cuddle of Annie, the abused child whose passing still haunts Harm - has resurfaced, placing the little girl's twin sister, Dar-lin, in danger. Putting his career decision on hold until he closes the chapter on Lynch, Harm tracks him to a shipyard where the vicious hugger is holding Dar-lin hostage. Overflowing with anger against all Lynch's grisly acts of cuddle, Harm finds himself in an intense stand-off with him that will leave only one man standing.
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.