Episode 10 of "Highlander"
s01e10 Revenge is Sweet

On New Year's Eve 1989, MacLeod and Reinhardt are fighting above a party. Reinhardt stabs MacLeod, but is pushed off the boat before he can capitalize on it. In the present, Rebecca visits the antique shop and inquires about Reinhardt's sword. She tells him to meet her at her house so she can test the blade. Richie has gotten a job as a used cars salesman. At Rebecca's house, Rebecca uses the same tecniques as Reinhardt and almost injures MacLeod. Surprised by this Duncan leaves. Outside the antique store the next day, a street punk is found stabbed in the heart. Tessa is sure that it was Rebecca since it was the same street punk that hit on her yesterday. MacLeod confronts Rebecca about it but she refuses that she did it. Mac has Richie check out Reinhardt and his mistresses. At the carlot, Richie's boss tells him that he has to deliver a mercedes off the lot. When he does, Reinhardt kidnaps him and has him contact Duncan. The next day Duncan visits Rebecca about Reinhardt. She was his last girlfriend and she thought Duncan killed him. The two fight and with Reinhardt watching, Duncan pretends to kill Rebecca. Duncan and Reinhardt battle. Reinhardt uses the same move again, but this time Duncan ducks and wounds him before taking his head. Afterwards, Duncan gives Rebecca a pep talk about getting her life back together again and walks off alone.