Highlander S06E13 - "Not To Be"

Fitz died three hundred years ago... Horton has taken over the Watchers... Joe Dawson has been reduced to a bitter, penniless vagrant... Amanda is a black widow... and Methos has rejoined the Horsemen to avenge his fiance's death.

If you think that's bad wait until you see what happened with Richie.

Fitz arrives to tell MacLeod what life might be like if MacLeod hadn't been born.