Archangel
- Original air date: 24 May 1997
- Written by: David Tynan
- Directed by: Dennis Berry
- Credited Cast: Adrian Paul (Duncan MacLeod), Stan Kirsch (Richie Ryan), Jim Byrnes (Joe Dawson)
- Guest cast: Peter Wingfield (Methos), Valentine Pelka (Ahriman/Kronos), Peter Hudson (Ahriman/James Horton), Edward Jewesbury (Jason Landry), Emily Raymond (Allison Landry), Reinhild Steger (Medical Officer), Patrick Gordon (Immortal Hermit), Richard Temple (Foster), Michel Scourneau (Cemetery Official), Pierre Rousselle (Detective), Bruno Grimaud (Customs Man)
Two archaeologists, Foster and Landry, are exploring a tunnel and they come face to face with a statue. Landry the more experienced and superstitious recognizes the statue as the ancient Zoroastrian demon Ahriman who plagues the world every thousand years by coming into human form. Foster is killed and Landry escapes. Landry warns Duncan that he is the champion who is to defeat Ahriman but both he and Richie think the man is crazy. But later Duncan sees James Horton, Kronos and other people he had killed before. Methos and Joe think he is losing it but Richie is willing to stay by his side whatever it takes. When Richie sees Horton taking Joe in a car to a racetrack with a gun to his head Richie calls Duncan and tell him he is going after them. Duncan who is with Joe at the time sees that it's a trap. He gets to the racetrack and is confronted by Richie, Horton, and Kronos. Ahriman has taken their form. He fights them but they disappear every time he attacks them. Then the real Richie appears and Duncan, thinking it is Ahriman, delivers the fatal blow. Joe and Methos arrive just as Ahriman in Richie's form laughs and leaves. Duncan runs away and Joe is left crying on Methos' shoulder. Richie is gone forever.
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