During a test flight Lt. Pendry has a deadly crash with his Tomcat. Harm and Meg are ordered to probe this case and the facts point to a pilot error, not at a system malfunction. Though Pendry was a risk-taking pilot, Harm doesn't think he has gone too far based on his knowledge from his flying days with Pendry. Locations: Miramar Naval Air Station; San Diego/area and off-coast

Due to the transposition of two digits of a phone number, Lt. Austin receives a fax with the itinerary for a person with the codename 'Shepherd'. Later, a Commander from the Royal Navy shows up demanding that paper. After receiving it he shoots Meg, seriouly wounding her. Trying to find out who this 'Shepherd' is and why this document is so important, they end up chasing an assassin named 'Hemlock' apparently working for Russian hardliners and trying to kill the man behind 'Shepherd'

- Boris Yeltsin who is due in the US for a secret treaty signing. Locations: Washington, D.C.; Bethesda; Leesburg, Va.

An evacuation training for a Space Shuttle team ends with a dead pilot caused by a broken cable. Harm and Meg investigate and soon determine that the cable was sabotaged. Harm's first suspect is promoted pilot Lt.Cdr. Lowry. As this is an important mission (repairing a spy satellite monitoring Southwest Asia) it can't be canceled. And since there isn't another eligible pilot, Lowry cannot be removed from the team. A training flight with Lowry and Harm on board has a fatal system malfunction - again sabotage. Lowrey can now be crossed out but the person responsible for these incidents must be found as the scheduled mission must proceed as planned. It is highly possible that there will be another 'unpleasant surprise' to stop this mission. Locations: AFB Vandenberg; Space

A killed Navy officer working at a destroyer's new defensive system is investigated by Harm with help from Lt. Pike and Cdr. Brockman. Later, during the testing of this system, a malfunction occurs and the system takes over the ship. Without any chance to navigate it, the ship drifts directly to North Korea where the North Korean Navy is already awaiting them. Meg, who came in later, tries with other technicians to break the lockout to regain control over the sabotaged system. Locations: Okinawa, Japan; Japanese Sea

Harm risks his life to prove that an F-14 squadron is not jinxed after there have been six fatal mid-air accidents, including one that killed his best friend.

During Mac and Harm's investigation into the ""curse"" of the squadron, they learn that the rumor of a jinx stems from an accidental bombing of an Iraqi mosque during Desert Storm. Now only one of the fliers involved in the bombing is left, and Harm has no choice but to fly with him in order to restore the squadron's confidence. However, when a mid-air refueling goes awry and Harm is seriously injured, it seems that the squadron may be jinxed after all.

Harm & Mac are sent to Belfast, Ireland when the child of Navy Lieutenant Nivens suddenly turns up missing and a note left behind indicates it was taken by Lorcan Barnes of the Irish Republican Army (IRA), who also happens to be the child's father.

Arriving in Belfast, Harm & Mac are immediately at odds with the Royal Police, when they suggest ""negotiating"" with the IRA for return of the baby. Not finding much help, they go and search out the IRA on their own. Directed to a bar & told to ask for a particular type of beer. While playing darts, a man showing Mac the proper way to throw a dart whispers in her ear to go to an abandoned storefront. With the Royal Police tailing them, Harm and the baby's mother risk going to the storefront, while Mac boards a bus and leads the Police away from Harm.

Harm and Mac play a deadly game of hide-and-seek in the Appalachian mountains when they are tracked by backwoodsmen poachers who have just killed a game warden.

While on their day off, Harm takes Mac for a flight in his vintage airplane, only to be forced to make an emergency landing in a mountain clearing because of mechanical problems. While in search of help, they unwittingly surprise a band of poachers who have just murdered a game warden and who are now determined to kill Harm and Mac. Their lives in jeopardy, Harm and Mac must utilize every evasive military maneuver they've ever learned in order to escape the murderers who are now hunting them.

Harm and Mac defend a former Navy Seal, now a homeless man, but still a highly trained killing machine, who is accused of using excessive force in killing three men who tried to hold up a convenience store.

It seems like an open-and-shut case of triple homicide until Harm and Mac discover that the former Seal, Paul Bauwer acted instinctively at the store as he sought to protect a young boy -- who happened to be his estranged son but didn't recognize him. Bauwer, embarrassed by his own vagrancy, wants to keep his identity a secret from his son. As a result, Harm and Mac must devise a successful defense without divulging their client's relationship to the only witness to the incident, while at the same time proving that Bauwer acted in an appropriate manner.