The episode begins with a shadowed man being executed in the electric chair for a double murder, laughing manically at the priest who's present as he dies.
Duncan goes to a martial arts dojo, DeSalvo Martial Arts, and expresses interest in joining. Charlie DeSalvo, the owner, tells him that it's an invitation-only facility. Duncan recognizes that he has to best Charlie as the test to join, and he does so, gaining Charlie's respect.
Joe Dawson arrives just after the fight, telling Duncan that an immortal named Michael Moore has escaped being buried alive and is killing people associated with his conviction and execution. Duncan intially rebuffs Joe, reluctant to get involved.
Duncan changes his mind when Immortal Michael Moore visits him for help because Moore's nemesis Barnes has reappeared. MacLeod helps Moore to track Barnes,asking Dawson for Barnes' file, even if Dawson has to break rules to get it.
Duncan and Michael have lunch Tessa and Richie and Duncan recalls visiting Michael at the mental sanitarium he worked at in the 50s. He recalls finding a distraught Michael, cradling his dead wife Jeanette, who he says was killed by Barnes.
Joe and Duncan investigate other people associated with the case who are still alive. Barnes gets to both of them first, however. Duncan and Michael go to the sanitarium, now abandoned, and Duncan finds a bunch of newspaper clippings about Barnes and, stuffed in a closet is the body of the young Watcher assigned to deliver the file. Duncan loses track of Michael. After returning to the antiques shop, he gets a call from Barnes, saying he's at the sanitarium. Duncan leaves again to go investigate.
An injured Michael returns to the shop, and Tessa patches him up. Michael begins acting erratically, saying Barnes is in the shop. In the bathroom, he writes on a mirror with lipstick, a very different demeanor about him. Michael Moore and Quentin Barnes are one and the same, and the Barnes personality is taking over.Tessa attracts Barnes's interest, and he beats up Richie, then nearly strangles her before MacLeod intervenes.
MacLeod and Barnes battle. Moore and Duncan eventually realize the truth as they battle and Moore reasserts himself long enough to beg MacLeod to kill him so that Barnes dies. MacLeod beheads Moore. The quickening is an unusual split quickening. Later, he does an intense kata in the dojo, and gets a visit from Joe, who says he lost a good friend. Duncan replies he did as well, and wishes Michael eternal peace, just as Michael wished Jeanette years before.
- First appearance of Charlie DeSalvo in the series
- Michael Moore having a girlfriend named Jeanette may be a nod to Geraint Wyn Davies' own series, "Forever Knight", where his character, vampire Nick Knight, had a vampire girlfriend/sibling named Janette.
- First appearance of the dojo that will become Duncan's Seacouver home throughout most of the series.