A day at the circus reunites MacLeod with a former lover, the Immortal femme-fatale, Amanda, who has always meant big trouble for him. Amanda, meanwhile, is in trouble of her own as her former partner, Blaine, has escaped from prison and wants her head. She plays the two Immortal men against each other, drawing MacLeod into a daring, high-stakes burglary she and Blaine are plotting.

Amanda, the beautiful Immortal cat-burglar returns to town, telling MacLeod she's retired from her life of crime. He doesn't believe her -- especially when two guys start shooting at them. Mac thinks the guys might be Watchers, but in fact they are FBI Agents. Amanda is in possession of some plates for counterfeit money, stolen in Germany before the War. She's looking for an engraver to change the dates, figuring since she's sworn to give up stealing money, she'll have to print some up. Palance, one of the FBI Agents, sets MacLeod and Amanda up to take the fall for his partner's murder, and demands that they turn the plates over. Mac and Amanda are forced to ""die"" on videotape to catch Palance.

When her mentor Rebecca is killed, Amanda is determined to avenge the death, even though it means going up against the formidable Immortal Luther, and very possibly losing her head. She comes to Mac for a final fling before her likely death, and when he discovers that she's after Luther, he tries to take the battle on himself, feeling he has a better chance of survival. Together they discover that Luther is hunting the pieces of an ancient crystal that Rebecca divided among her students, believing that the whole crystal will make him invulnerable and ensure that he is the Last Immortal. In the final confrontation, both Amanda and MacLeod take their turns battling the ascetic Luther.

Dawson has a new girlfriend, art historian Lauren Gale, and a new attitude on life. Unfortunately, Dawson arrives at Lauren's house one evening to witness her murder. We discover the murderer is Armand Thorne, benefactor of the Thorne Museum of Antiquities, who was being investigated by Lauren. MacLeod finds an ancient gold cross on display in Thorne's museum, a cross that had been stolen out from under his protection nearly two hundred years before. Armand Thorne, MacLeod discovers, is actually John Durgan, the Immortal trapper who murdered a frontier priest and stole the cross. MacLeod persuades Amanda to come out of cat-burglar retirement and help him to steal the cross from the museum in order to lure Thorne out of his heavily protected fortress. MacLeod confronts Thorne, taking his head, and finally gets fulfill his promise to return the Cross of St. Antoine.

Michelle Webster, the rebellious teenage daughter of a friend of MacLeod's, drives away from her parents' house in a rage and right over a cliff. Trauma surgeon Anne Lindsey tries her best to save Michelle, but it's too late. MacLeod rushes to the hospital to comfort his grieving friends -- and sneak their newly Immortal daughter out of the morgue. He tries to train her in the arts of Immortality, but Michelle just wants to have fun. She meets Immortal Axel Whittaker who promises her all the fun and adventure she could imagine if she stays with him. In flashback, we see that Axel uses beautiful new Immortal women as bait to trap other Immortals and take their heads -- MacLeod barely escaped with his in 1896 Boston. Axel uses Michelle to lure MacLeod to his yacht, where they continue the battle they started a hundred years before. MacLeod defeats Axel. Michelle, witnessing the fearsome power of the Quickening, agrees to be trained as an Immortal under the protection of Amanda.

Amanda accidentally helps Kalas escape from prison by trying to do MacLeod a favor and kill Kalas for him. After an attempt on Maurice's life thwarted by MacLeod, Kalas kidnaps Amanda to use as bait against MacLeod, but Amanda manages to escape. Meanwhile, Christine Salzer, the widow of a Watcher killed by Kalas (in ""Methos"") decides to get her revenge on Immortals and Watchers alike by exposing their secret to the media. Dawson and Methos team up to try and talk Christine out of it, but she's determined to take a computer disk with the identities of all known Immortals and Watchers on it to a newspaper publisher. Dawson, desperate, tries to kill her outside the newspaper building, but is stopped by MacLeod and Methos. Christine enters the building and the Immortals and the Watcher know their lives are about to change forever.

As Christine tells her tale to the newspaper publisher, MacLeod and Amanda, knowing their world is about to end, finally admit they love each other. Kalas kills Christine and the publisher and steals the computer disk before they have a chance to spread the story. Kalas offers MacLeod a deal -- MacLeod offers up his head or the contents of the disk are made public. Dawson and the Watchers attempt to find Kalas, but this only results in more dead Watchers. Methos tries to talk MacLeod out of it, but MacLeod agrees to fight Kalas on top of the Eiffel Tower. Kalas is defeated and the resulting Quickening, amplified by the Tower, sends a power surge that disrupts every computer in the vicinity -- including Kalas'. The information on the disk is destroyed and Immortals and Watchers maintain their anonymity.

MacLeod's old friend, Kit O'Brady, comes into town in search of a good race horse and a change of luck. MacLeod knew Kit back in Gold Rush San Francisco, when Kit ran the Double Eagle Saloon. Kit lost the Double Eagle to Amanda in a poker game and has blamed her ever since for his string of bad luck -- and he's vowed to kill her. When Amanda chooses to breeze back into MacLeod's life while Kit is there, MacLeod is hard pressed to keep them apart and to keep them from killing each other.

Running for his life from Immortal Terence Kincaid, Kenny runs straight into Anne Lindsey's emergency room. Stashing Kenny in the hospital chapel, Anne calls MacLeod for help. MacLeod agrees to harbor him for one night only, but when MacLeod gets him home, Kenny discovers his long-lost teacher there -- Amanda!

World War I was officially over when Colonel Simon Killian ordered his troops into one last bloody attack on the Germans. MacLeod witnessed the massacre and made sure his testimony at Killian's court martial got Killian locked up forever. Seventy years later, Killian is back to return the favor. Meanwhile, Amanda has found a new friend, Melissa, a young thief out for thrills. Melissa wants to be just like Amanda so she changes her hair and her clothes to look just like her -- so much so that Killian kidnaps her, thinking she's MacLeod's girlfriend.

When masked thugs try to take Amanda's head in her sleep and steal the crystal given to her long ago by Rebecca, Amanda and MacLeod investigate. They discover the the crystal may be part of the Methuselah Stone, a mystic talisman said to impart eternal life and invulnerability to the wearer and that the person willing to kill Amanda to get it may be -- Methos?

Two-bit magician Danny Cimoli gets a whole new act when he's hit by a truck and becomes The Immortal Cimoli. Amanda and MecLeod find him in a circus, taking bullets in the heart to the delight of the audience and blissfully unaware he's now part of The Game. MacLeod tries to get Danny into shape when Crusader Damon Case comes to claim his head, but Danny's more interested in achieving ""real"" immortality -- going down in history as a magician even greater than Houdini.

Carolyn Marsh's latest best-seller is a hot and sexy romance novel featuring a smoky-eyed swashbuckling Highland hero named Duncan MacLeod. Both MacLeod and Terence Coventry, the Immortal depicted as the borish villain of the novel, are out tofind the author -- MacLeod to find out how much she really knows about him, and Coventry to kill her.

MacLeod and Amanda are reunited with Cory Raines, the charming, smooth-talking ""Clyde"" to Amanda's ""Bonnie"" during their five state crime spree in the 1920s. Amanda, always ready for a little larceny, is tempted by the carefree and adventurous lifestyle Cory offers her and takes him up on the offer when she realizes MacLeod won't beg her to stay with him. But MacLeod rides to rides to the rescue when one of Cory's schemes goes astray.

According to official statements by the British government, the theft of the Stone of Scone, the legendary royal throne of Scotland, from Westminster Abbey in 1950 was simply a rowdy schoolboy prank. But was it? Or was it actually the bungled work of three rather hapless Immortals, attempting to fulfill a promise made centuries before?

After the Scottish massacre at the Battle of Culloden in 1746, Duncan MacLeod was a man possessed, obsessed, with killing the English bastards who had destroyed his people. Now Immortal Steven Keane has come to make MacLeod pay for his murderous crimes. Amanda urges MacLeod to take Keane's head and be done with it, but in his heart MacLeod knows that Keane is right -- he is a murderer -- and that Keane is judging him just like MacLeod has judged so many others.

The popular series lays down its sword after six seasons in this stirring finale, in which MacLeod makes the ultimate sacrifice to save the lives of Amanda and Joe Dawson... then reunites with old friend Hugh Fitzcairn, and gets a look at what the world-- and his friends' lives-- would be like without him.

Fitz died three hundred years ago... Horton has taken over the Watchers... Joe Dawson has been reduced to a bitter, penniless vagrant... Amanda is a black widow... and Methos has rejoined the Horsemen to avenge his fiance's death. If you think that's bad, just wait till you find out what's happened to Richie and Tessa.