The Immortal thief, Amanda, sets out to discover who killed her fence. Meanwhile, police detectives Nick Wolfe and Claudia Hoffmann follow her. However, they soon discover that a crooked detective, Stanley Ferris, is responsible for the murder and trying to frame Amanda for the crime.

Nick is working for Bert trailing a suspect in an industrial theft case. He witnesses the man being killed by a woman, Marta, who claims diplomatic immunity. While Bert holds the woman in custody through his connections, he needs Nick to recover the plans at the woman's embassy. Nick needs a partner, an experienced thief. Amanda is on the run from an obsessed Immortal, Stefan Collier, and accepts the job as a diversion. Posing as husband and wife, they go into the embassy at a part and try to steal the plans. However, Marta manages to escape from jail and returns to the embassy, interrupting their plans. The two try to get the plans, but are distracted by Collier arriving on the scene. They catch up to Marta at the airport and take the plans. Marta declines efforts by Bert to help her, even though we find out she's his ex-wife. She is returned to her country, presumably to be killed for her failure, while Amanda defeats Collier. Copyright 2002 Steve Crow

A hundred years ago, Amanda was coerced into training with Andre Korda, a ruthless Immortal who raided villages in China. She fled him, but now he's back as a modern-day criminal. The Watchers are on his trail, particularly Joe Dawson (from Highlander). Nick runs into them and is introduced. Korda robs an armored car using his immortality, and Nick insists on bringing him in. Korda escapes when Joe intervenes, since he's taken a vow to keep the Immortals' existence secret. Realizing that Nick won't let it go, Amanda goes to fight Korda's assistant Crysta and takes her head. However, she then disappears and Joe tells Nick that she died. Seeking revenge, Nick travels to Paris and another of Korda's holdings, only to be pre-emptively shot. Before Korda's henchman can finish him, he himself is killed by another shadowy figure who takes Nick away, while Amanda decides to go off to Paris after Nick.

A woman watches her partner get gunned down...and we next see her at the bar. She is Nick's ex-wife Lauren. A lawyer, she is pursuing an organ bootlegging case against a Dr. Julian Heller. Heller is an Immortal, who makes a huge profit on using his medical practices to corrupt purposes. He and Amanda had a run-in centuries ago when Amanda assisted as a midwife for a woman accused as a witch. Amanda escaped then and still holds a grudge, but Nick insists it is personal. He and Lauren briefly rekindle their romance, but Heller then has Lauren killed. Swearing revenge, Nick goes after Heller. Amanda gets there first, but is knocked down a flight of stairs and briefly killed. Nick arrives and drives off Heller before the latter can take Amanda's head. Nick takes Amanda's sword and goes after Heller with his gun. A game of cat & mouse ensues, but Nick gets the upper hand and takes Heller's head. Amanda arrives just in time to get the Quickening, leaving Nick to lament what might have been.