Using a matter transfer device left behind by the Taurons, Will beams himself back to Earth. He arrives safely in the small town of Hatfield Four Corners, Vermont, but his pleas for help are considered the fantasies of a runaway boy.
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 an evil John Robinson.
The Keeper is an alien who travels the galaxy collecting living pairs of interesting or rare animals. His courtly overtures towards the Robinsons belie his true intention -- to add a pair of humans to his incredible menagerie.
Date: October 16, 1997. The Jupiter 2 is to launch, but a saboteur wants to destroy it. Unfortunately he is part of the Jupiter 2 crew now Lost In Space.
Troubles with The Keeper would be over if Dr. Smith hadn't skulked aboard his ship and released all the animals, putting The Keeper in a position to blackmail the Robinsons for their children.