Immortal Alex couldn't keep the Nazis from killing her Jewish love, so she aids his son in righting a wrong done to a group of murdered Jews from the Warsaw ghetto, killing one of Duncan's friends in the process.
Immortal Kyra develops hysterical amnesia after she fails to prevent the murder of a judge she was hired to protect and then fell in love with. Fortunately, she runs into old friend Duncan before her would-be killers find her.
Duncan has a new fencing partner who invites him out to lunch. Shortly thereafter Duncan foils an attempt by another Immortal, Katia, to kill his partner. Amid two different sides of the story Duncan struggles to find the truth.
Immortal bounty hunter Reagan is trying to enjoy a vacation in Paris when she witnesses the murder of a photographer who accidentally took a picture of an elusive terrorist, and she needs Duncan's help to unravel the story.