A woman radar-intercept officer (RIO) disappears at night from an aircraft carrier in the Adriatic Sea. Two JAG lawyers, Lt. Harm Rabb and Lt. Caitlin Pike, investigate and solve. Harm, a former Naval aviator, unexpectedly becomes a hero.
A civilian tech rep aboard a submarine seizes control of an experimental torpedo after its launch during an exercise. The rep threatens to sink a cruise ship and demands a ransom. Harm and Ltjg. Meg Austin go to the sub and save the day.
Due to a human error in an exercise, artillery fire injures seven Marines, one of whom later dies. The accused is a son of a former commandant of the Marine Corps. Harm and Meg investigate; Meg, with help from Ollie North, finds the truth.
During the past 11 months three Navy men lieutenants have died during knife attacks in and around Washington; the most recent body is found in the Arlington National Cemetery. Harm and Meg investigate; their attention turns to the Thai ambassador, his wife, and his chief of security, because the victim gave the wife a ride shortly before he died. The chief gives a confession, but Meg distrusts it, and Harm reaches his own conclusions. Meg and Harm discover the truth. The events lead to Harm's revealing a part of his past as a teenager.
Two Naval aviators die in a crash of an F-14 while using a new fly-by-wire navigation system. Harm and Meg investigate. The vendor of the system blames the pilot. Harm flies both a simulator and a Tomcat; he and Meg discover the cause.
In Lima, Peru, while a boy sneaks into the US embassy at night, a Marine guard stops him; the boy fires, and the guard returns fire and kills him. Locals react strongly. Harm and Meg investigate amid violent retaliation, yet they solve.
A sailor has stolen two Stinger missiles from a base. Harm and Meg investigate. A brig break takes place, with Meg as a hostage. Troops and a helo pursue, and much shooting follows. Harm, Meg, and Lt. Kate Pike prevent a nuclear detonation.
Two Marines in a Humvee mistakenly drive into Iraq; an Iraqi detail intercepts them, kills one, and captures the other. Ihe Iraqis try the survivor for espionage; Harm and Meg defend. Harm also carries out the duty of springing the Marine.
A woman Marine recruit dies at Parris Island. Harm investigates while Meg poses undercover as a recruit. Harm distrusts the official appraisal of the death as an accident, and Meg meets threats and attempts against her. They find the truth.
In south Texas residents have reported strange phenomena, stories of supernatural events have abounded, and a 10-year-old girl has disappeared. Harm and Meg investigate; they find the girl, and they solve the greater mystery.
During a landing exercise Marines find a beaten, comatose fellow Marine on the beach; while investigating, Harm and Meg find inconsistent data. They and the company commander run into trouble, but they sort things out and set them right.
A patrolling F-14 malfunctions in a no-fly zone; the crew ejects, and the bird explodes. A Serb helo strafes the crew while they descend with their chutes. The CAG destroys the helo, then he faces a court-martial; Harm and Meg defend him.
After a lightning strike an F-14 wanders into Cuban airspace, and Cuban fighters force it to land. Harm and Meg in Cuba try to negotiate a return of the aircraft and the pilot -- before anyone seizes the advanced programs from the bird.
By mistake a foreign agent sends a fax to Meg's office; then he retrieves it and shoots Meg to prevent her from identifying him. Meg undergoes surgery; Harm and others track and find the assailant, who's an assassin on an assignment.
A Marine sniper receives orders contrary to a previous deal; his CO refuses to listen; the sniper takes a shot at the CO's Humvee. Harm and Meg investigate. After an escape and a chase, Harm returns the accused to the base and works it out.
A Naval aviator, while temporarily assigned to a SEAL team, drowns at sea; he was the son of a woman senator. Harm and Meg investigate. First they meet stonewalling and misrepresentation, but persistence and determination produce the truth.
In a civilian court Harm represents a divorced (and emotionally baffled) Marine colonel, who has gotten into trouble over an unauthorized visit with his minor son. A manhunt ensues, with Harm as one of the hunted, but Harm brokers a deal.
A Navy astronaut dies during a drill while preparing for a space mission to repair a satellite. Harm and Meg investigate; after a second casualty they not only identify the person responsible but also prevent a destruction of the satellite.
Chicom agents capture Harm in Hong Kong; they vigorously question him in mainland China about official matters. During mind games Harm imagines his father's voice. Meg and Alison search for Harm, and, after a firefight, they get him back.
Someone kills a Naval officer on Okinawa, then his ship encounters major trouble during war games at sea. Harm, Kate, and Meg investigate and solve. A rogue system hijacks the ship and heads it toward North Korea, but Meg regains control.
The body of a woman Naval officer, a friend and classmate of Harm, is found ashore. Harm, Meg, and Alison investigate. Sparks fly between Harm and an NCIS agent. The body of another officer, a suspect, is found. Harm winds up under arrest.