Highlander: The Series - Season 3 - Eps 12: They Also Serve
Recent Immortal Michael Christian has been on an incredible string of luck, taking a number of heads from unarmed and vulnerable opponents, including May-Ling Shen, who taught MacLeod the martial arts in 1780's Mongolia. Christian's Watcher, Rita Luce, has been doing more than just watching, supplying Christian with classified information on the other Immortals and their weaknesses. MacLeod, unaware of Christian, goes on a vision quest to his cabin on Holy Ground -- deliberately leaving his sword behind. The race is on for Joe Dawson to figure out Rita's secret before Christian sets his sights on MacLeod.
About Highlander: The Series

Title: Highlander: The Series
First Air Date: 1992-10-03
Last Air Date: 1998-05-16
Status: Ended
Rating: 7.394/10 (from 390 votes)
Language: EN
Seasons: 7
Total Episodes: 119
Network: Syndication
Genres: Sci-Fi & Fantasy, Drama, Action & Adventure
Production Companies: Reteitalia, RTL, Gaumont International Television, Amuse Video, Atlantique Productions, Rysher Entertainment, M6 Métropole Télévision, Filmline International, Davis-Panzer Productions, TF1 Films Production, Amuse Soft Entertainment
Synopsis
Duncan MacLeod cannot die -- he is a 400-year-old immortal, who has seen his share of humanity's history. Still, he risks his life in battle against other immortals and tries to save people from harm.
Cast

Adrian Paul
Duncan MacLeod

Jim Byrnes
Joe Dawson