S4, E1: A lightning bolt strikes Sam (Scott Bakula) and Al (Dean Stockwell), causing them to trade places and personalities: Al (Dean Stockwell) becomes a World War II ex-POW just returned home in 1945; Sam (Scott Bakula) leaps ''home'' to the Q.L. control center in 1999.
Sci-Fi · Sep 18, 1991 · 44 min