Deadly Pawn
S02E04 - Airdate: 1969-10-12
Runtime: 60 min
First Fitzhugh, Barry and Valerie, then Mark, Steve and Dan, are captured by Kronig, a giant industrialist who is a chess fanatic. He wants to demonstrate his superior mind against the Earthlings. To do so, he tells them to pick there best chess player to play with him. If they win, they will get there freedom.
Episode details and rating from TVmaze.