While patrolling the Mediterranean near Yugoslavia and against the orders of Harm, his division commander, Lt. Buxton fires on what he believes is a Serbian armored car about to attack Kosovar refugees. As Buxton and his pals are celebrating his victory back aboard the aircraft carrier, however, the grave news arrives: those ""Serbs"" Buxton attacked and killed were, in fact, Russian peacekeepers, and Buxton made the mistake while under Harm's command.

Mac prosecutes what appears to be an open-and-shut case of a Marine weapons expert accused of reckless endangerment.

Harms fitness report is coming up and the realization that maybe it really is too late to be a fighter pilot.

During a dangerous mission over hostile Serbian territory, Harm's wingman's plane is shot up and Harm performs top-gun maneuvers to keep the disabled plane aloft until it's over friendly territory.

Meanwhile, with a new Gunny in the office, Bud & Tiner fall over themselves as they compete against each other in an online auction to purchase tickets to a concert, in order to impress the Admiral. They end up looking foolish when it is discovered that the Gunny got the same tickets for free.

Admiral Chegwidden welcomes Harm back to JAG by assigning him a tricky case - defending the son of the Secretary of Navy. Harm takes the case when Lt. Nelson, the son of the Secretary of the Navy, is accused by Cmdr. Burke of disobeying an order at sea, an act worthy of a court martial.

When a Navy research project involving psychic phenomena goes awry and results in the death of one of its research subjects, Harm defends the admiral in charge of the project. As Mac prosecutes, she steadfastly proves that the admiral's ESP theories are wrong. But when her friend Chloe disappears and Mac experiences a vision that could save her life, she begins to have second thoughts about the paranormal.

As lowest ranking lawyer at JAG, Bud is assigned to accompany Raglan, a former special Forces operative who is hired by the Pentagon to test security at military bases. Raglan's current mission is to test the security around a U.S. nuclear attack submarine. But when Raglan goes too far and hijacks the sub with Bud on board, Harm is called in to chase the sub down by second guessing his old friend. The cat and mouse game becomes deadly, though, when it appears that Raglan has switched sides, demanding millions of dollars in ransom or he'll take aim on a U.S. target.

Harm and Mac are sent to Panama to investigate the wife of a Marine officer, Olivia Dunston, suspected of smuggling drugs into the U.S. When faced with the evidence, Olivia feebly denies the allegations, leaving Mac thinking that she's guilty of the charges.

Harm faces a court-martial when a letter critical of the President appears on the Op-Ed page of a newspaper and is traced to his computer.

As an investigation threatens Harm's promotion as well as his entire career, a well-known conservative organization offers to represent him and Harm accepts. The key to Harm's defense is to find the actual letter-writer, so Bud digs through Harm's old case files searching for those with an axe to grind.

Lt. Elizabeth ""Skates"" Hawkes, Harm's former RIO (radio intercept officer), comes under fire after the crash landing of a Tomcat aboard the USS Patrick Henry. The ship's captain and Skates' commanding officer both place the entire blame of the crash on her shoulders and press for her court-martial.

Barred from the initial investigation because of his relationship with Skates, Harm is finally able to help when he's called upon to defend his friend at her court-martial and employs all of his legal skills to save her military career.

On Christmas Eve, Harm pays his annual visit to the Vietnam Memorial to honor his father who was shot down on Christmas Eve, 1969. At the memorial, Harm meets a beautiful, but mysterious woman, who claims to have known Harm, Sr. She used to be a singer in a traveling USO tour and she met Harm's father shortly before his fateful flight.

In an unusual casting twist, Harm stars as his father in this episode, and many familiar faces show up playing different roles.

Harm and Mac stumble upon a miscarriage of justice in a 10-year-old case when they tutor a group of law students in a mock trial.

In the original case, an investigation team headed by Admiral Chegwidden concluded that a disgruntled gun captain caused an explosion that killed 29 sailors, including himself. But when the ""defense attorney,"" helped by Mac, and the ""prosecutor,"" helped by Harm, retry the case, a new witness and new evidence are uncovered, prompting Mac and Harm to request that the original hearing be re-evaluated.

Mac is assigned the personally distasteful task of representing a fellow Marine who is appealing his death sentence for the murder of three other Marines. She believes that the defendant, Kenneth Farmer, should receive the death penalty, but she must argue otherwise in court. Brumby, who doesn't believe in capital punishment, must argue in favor of it.

However, in attempting to overturn the original guilty verdict, Mac must argue inadequate counsel by the corporal's previous lawyer: then-Commander A.J. Chegwiggen. The appeals court lets stand the original guilty verdict, but orders a new sentencing hearing.

Mic is recalled by the Royal Australian Navy and must leave within 72 hours. As a result, Harm is assigned to replace Brumby at the new sentencing hearing. Despite Mac's arguments to the defense of Corporal Farmer that was not raised by then-Commander Chegwiggen, Corporal Farmer is again sentenced to death.

Admiral Chegwiggen throws a goodbye party for Mic at the local bar.

At the request of Lt. Cmdr. Brumby, Admiral Chegwidden sends Harm and Bud to Australia to represent a U.S. Naval officer, Kevin Lee, who has suddenly surfaced 28 years after being "murdered" by an Australian sailor. Lee contends that he accidentally killed his Australian nemesis years ago and, in a panic, exchanged identities with the dead man.

Now, charged with both deserting and murder, Lee is to be tried in an Australian court, pitting Harm against Brumby. Harm and Brumby are also about to go head-to-head outside the courtroom when Mac appears in Sydney and Brumby decides it's time to make her choose between him and Harm.

Trouble in the JAG office starts when Gunnery Sgt. Victor Galindez, ""Gunny,"" is charged with assault following an off-duty altercation outside a gay bar. It comes to light that P.O. Tiner was also involved in the brawl, having come to the aid of his companion, whom Gunny was roughing up.

Meanwhile, Mac finds herself wrestling with the ""don't ask, don't tell"" policy as attitudes toward Tiner change around the office under suspicions that he's gay.

Harm and Chegwidden fight an attempt by a salvage hunter to excavate the remains of a submarine that disappeared in 1941, just before the attack of Pearl Harbor. Meanwhile, Bud takes on the heavy burden of trying to keep an obese petty officer from being discharged for failing to lose weight.

Harm and Mac face-off in court when a female seaman, charged with desertion, claims she left because her recruiter lied to her about what her duties would be. Meanwhile, Admiral Chegwidden takes the case of an old friend whose impressive career is threatened because of the side effects of Viagra.

Mac prosecutes a SEAL jumpmaster is charged with causing the drowning death of a trainee during a parachute mishap by being hung over and is defended by Bud, assisted by a new female Lieutenant who is very ambitious, wanting to be the first female JAG.

Bud & Lt. Singer discovers a safety file that is inadmissible in court that supports the prosecution's contention that the jumpmaster was impaired. The file mysteriously winds up in Mac's car and she thumbs through it. After conferring with Harm who tells her what she already knows, she burns the file. But during questioning court, Lt. Singer objects that Mac is basing her argument based on the file, which Bud reluctantly agrees. Mac is charged with prosecutorial misconduct, removed & replaced by Harm.

Having been chewed out by the Admiral, she takes some leave & heads to spend time with Mic in Australia, running into the Admiral & Dr. Walden who are taking their own weekend 'trip'.

Harm reopens a 10-year-old murder case and unexpectedly incurs the wrath of the victim's daughter, his friend Lt. Cmdr. Teresa Coulter (Trisha Yearwood). Harm feels that the original trial attorney didn't dig deep enough into the case and as he pursues the investigation a new picture begins to develop.

Bud's underachieving brother is accused of making a mistake during a training exercise that nearly killed 15 Marines. But establishing his innocence proves to be a difficult task, thanks to the age-old tension between the Navy and the Marines.

Adm. Chegwidden frets over a speech he must give when he is to be given an award.

Mic Brumby returns unexpectantly to the States; Mac & everyone are stunned when he announces that he has resigned his Royal Australian Navy commission so that he could move to the USA and be by the "woman he loves."

While Harm is sent to Russia to help the Russians find a better way to implement their military justice procedures, Mac and Bud remain behind to prosecute a Naval commander charged with selling military secrets to the Russians. Once in Russia, Harm becomes involved in investigating high level corruption in the military.

Meanwhile, Mac is on the verge of making a deal with the traitorous Naval officer when he and his lawyer are murdered. Mac and Webb then discover that the traitor was linked to a Russian assassination plot. But Mac's attempts to alert Harm fail, and he is caught in an ambush with a Russian who reveals the life-changing secret to him.

Harm is distraught when his newly discovered half-brother, Sergei, is framed for a crime punishable by death, while Mac arrives in Russia to prevent a presidential assassination.

When two Naval aviators are killed in the crash of their newly upgraded F-14 jet, Harm uncovers improprieties with both the civilian contractor and the Navy liaison.

Mac comes under the glare of media scrutiny when she's named to prosecute in JAG's first televised court martial.

As Mac prepares for her televised prosecution of an innocent looking young ensign accused of murdering her husband's teenage girlfriend, she learns that her opponent is none other than Juanita Ressler, who was her professor in law school. Ressler is a very media-savvy trial attorney who uses every trick in the book to swing the media and the public over to her client's side.

Harm travels out to sea to investigate the death of a sailor aboard a carrier. Originally thought to be a suicide, Harm discovers evidence to the contrary.

Mac is assigned to represent an Arab princess not only at an INS hearing but also before an Islamic court, when the woman elopes with a Naval Petty Officer who is accused of smuggling her into the United States.

When AJ talks to Dr. Walden about what happened to his car, she is appalled that AJ would accuse her son of impropriety & terminates their relationship. Danny Walden is quite smug to AJ that he had been able to break them up -- which will come to haunt him later. With his car still being held by the police, he is dismayed with driving a rental car.

Harriet goes into labor 4 weeks early and a seemingly positive childbirth turns sour when it is discovered that the baby's head is pressing against the umbilical cord cutting off blood supply to the baby and her doctor (Dr. Gettis) is nowhere to be found. As another doctor steps in, Harriet is wheeled to the operating room in an attempt to save the baby.

Adm. Boone (CAG aboard the USS Seahawk, ""A New Life"" & ""Chains of Command"")is nominated to become the Sixth Fleet Commander. An anonymous informant accuses Adm. Boone of massacrering civilians during the Vietnam War, and Harm and Mac are given only four days to investigate the claim, in part one of a two-part episode.

Harm & Mac defend Adm. Boone in court against the charges that he was responsible for massacrering civilians. Although he is eventually acquitted, he decides that it is probably best to retire from the service, despite Harm's objection that the Navy need men like him.

At Christmas time, while everyone else at JAG is enjoying the happy time of the season, Bud & Harriet are at little Sarah's gravesite unveiling her headstone that has just been placed. Bud vows that it just can't end like this and insists on finding out what happened. Bud & Harriet approach Mic to have him represent the Roberts in their case against Dr. Gettis. Mic warns Bud to stop, leading Bud to realize that Mic can't represent them, as his practice is representing Dr. Gettis. Harriet tries to talk Bud out of pursuing the case, but her pleas are ignored by Bud.

Mac is assigned the case by the Admiral despite Bud's plea to be the lead attorney. Even though he is ordered to stay away from the case, he nonetheless can't. Mac questions Dr. Gettis as to why he took so long to respond when Harriet labor was in trouble. Dr. Gettis claims that his pager battery had died & didn't realize he was needed until he heard the overhead page for him.

Harm's former partner Kate Pike is considering transferring back to the JAG office. It becomes complicated when a former CO of Kate is being considered as the new Inspector General and Kate confides to Harm that he made unwanted sexual advances to her when she worked for him.

Lt. Singer appears at the door during Kate's conversation and soon afterward, the affair is reported by the Washington media, although Harm suspects Lt. Singer as the source, she denies she overheard anything.

Eventually, Kate decides that Washington is just not the place to work and decides to turn down the Admiral's job offer.

Mac becomes ""Acting JAG"" as Admiral Chegwidden is selected to head the Promotions Board for Captain.

Harm takes up the defense of a former Marine Drill Instructor who is facing life imprisonment under the 3 strikes law.

Cmdr. Ted Lindsey (last seen in ""People vs. Mac"") tries to impress the Admiral & Mac in an attempt to earn promotion to Captain.

When U.S. and Turkish ships collide during a NATO exercise, Harm and Mac defend the U.S. captain, who is being made the scapegoat for political reasons.

Harm defends a Sergeant Major accused of the attempted murder of his wife. However, the Sgt. Major claims that he was concerned when his wife didn't come home, went out looking for her & was led to her location by the vision of a deceased chaplain from his old Vietnam unit. His defense attracts a representative of the Vatican which is considering the deceased chaplain for Sainthood.

Meanwhile, when Tiner hooks up a new screensaver that searches for extra-terrestial life on the Admiral's computer, it stirs excitement when it starts making weird noises.

Harm's friendship with Capt. Volkonov puts him in a precarious position when a Russian submarine blows up and the Russians claim that a U.S. submarine was responsible. It's up to Harm to convince his friend (& the world) that the accident was caused by a faulty new Russian torpedo, without divulging highly classified material.

Meanwhile, Mac is sent onboard the USS Watertown to observe when the Congressional committee headed by Rep. Latham investigates as to why women are not allowed to serve aboard submarines.

Renee & Mic are left behind wondering whether their really is something between Harm & Mac.

When Gunny goes to New Mexico to bring back a Korean War hero accused of desertion, he is ambushed by people trying to kill the man.

As Bud is defending his brother Mikey, a petty officer accused of murdering a Mexican in a barrom brawl, their father shows up.

Harm and Mac investigate the Osprey, a controversial Marine Corps helicopter/airplane, after one almost crashes with Congresswoman Bobbi Latham on board.

Harm & Mac square off in court over a charge of illegal fraternization, but when they oral arguments become directed at each other & reflecting their own relationship, Judge Helfman recesses the court for the day with a strong admonishment to the both of them.

All the staff shows up at Admiral Chegwidden's house for Mic & Mac's engagement party. Lt. Singer shows up in a knock-out of a dress which stuns the Admiral for a moment, not used to seeing her in civilian clothes.

Bud shows up dress properly for once, but Harriet notices after arriving that he has peanut butter on his tie. Bud is mortified trying to get a tie from anyone, without much luck. Later, he is forced to remove his jacket when wine gets spilled all over him. Even more mortified, Bud feels desperately out-dressed.

Throughout the evening, Mac reminisces with the Admiral about past events involving the both of them.

Preparing to give a lecture about an 1842 Naval court-martial, Mac finds herself daydreaming about what actually happened.

Mac becomes upset when Harm tells her at the last minute that he will not be attending her rehearsal duty in order to complete his 6-month required carrier landing qualifications. He assures her that he will be back in time for the wedding. At the church, Chloe is still wary of being friends of Mic. On board the USS Patrick Henry, Harm learns that the LSO who will be grading him thinks of him only as a "land-based Washington weenie." His fears that he won't be graded fairly are realized when he is ordered to land after his first attempt is waved off. After convincing the LSO that they were flying they way that the LSO taught them, he allows Harm to try again. After passing, he then completes his required night traps and requests to head back to Andrews AFB. With an approaching storm, all air operations are suspended, but is assured that he & Skates can be on the first Tomcat, once its forecasted to be safe. With a break in the storm, he & Skates are allowed to go.

Harm's chance of being rescued from the Atlantic Ocean hinges on Mac's psychic ability (first seen in Season Five's "Psychic Warrior"). However, Mac is trying to cope with her conflicting emotions for both Harm & Mic. On the edge of going unconscious from severe hypothermia, Harm's fires several warning shots which attracts the rescue helicopter. Back onboard the USS Patrick Henry, Harm's vital signs start to fade out, but Skates words help him pull through. Transferred to Bethesda Hospital, Renee learns that Harm has partial amnesia and doesn't remember them being a couple over the past year. Mac's indecision about the wedding drives Brumby back to Australia. When Harm tells Mac on the phone to come to his place so that she doesn't have to be alone, she arrives only to learn that Renee has beaten her to Harm's place with the news that her father has died. Mac ends up in the rain with no one around.

Unwilling to face her pain over Mic & Harm, Mac is granted temporary assignment on the carrier USS Guadalcanal (along with Gunny) when the staff JAG there disappears.

Harm returns to active duty after returning from Renee's father funeral.

A year ago, Sturgis was assigned to prosecute Bud against charges that Bud was derelict in his duties while representing his client in court. Now, Sturgis competency in handling a case is questioned and Sturgis must now rely on Bud to successfully defend him.

When the CIA learns that a drug lord is attempting to sell missiles to terrorists, Clayton Webb (re-assigned to South America in "Need to Know") is assigned to prevent the deal from going through. To help with his cover, Mac is sent from Washington to masquerade as Webb's pregnant wife.

In Paraguay, Mac & Webb continue their mission to thwart the drug lords & terrorists.

Harm continues to deal with his emotions where Mac is concerned. Worried about her, Harm turns to CIA Attorney Catherine Gale for help in determining Mac's location. However, Harm ends up helping Ms. Gale with a personal issue.

In the final episode of the series 8th year turns out to leave fans of the show with facing yet another long summer of anticipation & speculation. When word reaches Washington, DC that Webb & Mac are missing, Harm insists on leaving for S. America to search for them, even if it means resigning his commission.