Episode 71 of "Sliders"
s05e01 The Unstruck Man
Title: The Unstruck Man
Original Air Date: 06/11/1999 on Sci-Fi Channel
Director: Guy Magar
Writer: Bill Dial, Chris Black
Guest Stars: Scott Kloes (Hal), Peter Jurasik (Dr. Oberon Geiger), Tembi Locke (Diana Davis), Larry McCormick (Weatherman), Pete Koch (Ike), Clay Wilcox (Preacher)
Plot Outline:
After experiencing a rough slide, Rembrandt and Maggie see Colin is nowhere to be found. More disturbing, they meet a stranger claiming he is Quinn Mallory. Rembrandt and Maggie learn too late that this is all apart of an evil genius' desperate plan to save his life.