John Robinson and Don West are transported onto a strange new world where their evil opposites exist and plan to change places with them. Will, The Robot and a reluctant Dr. Smith set out to find and help the real Don and John only to be pursued by a evil John Robinson.
Did You Know?
This alternative universe episode follows Star Trek: Mirror, Mirror
(1967), broadcast two months earlier. The premise of the episode is practically identical to the Star Trek episode. See more
When Dr Smith is left alone on the path in the Anti-matter world by the robot, shadows from the tree branches in the foreground can be seen on the fake mountains & sky in the background. See more
Swing Low, Sweet Chariot
Written by Wallis Willis
Performed by Dick Tufeld See more