Lost in Space are to be cryogenically frozen for the voyage, and they are set to be unfrozen when the spacecraft approaches its destination. Meanwhile, Dr. Zachary Smith (Jonathan Harris), Alpha Control's doctor, is revealed to be a saboteur on behalf of an unnamed nation. After disposing of a guard who catches him on board the spacecraft, Smith reprograms the "Jupiter 2"s B-9 environmental control robot (voiced by Dick Tufeld) to destroy critical systems on the spaceship eight hours after launch. Smith, however, becomes trapped aboard at launch and his extra weight throws the "Jupiter 2" off course, causing it to encounter a
Lost in Space in Space. To compete, "Lost in Space" Season 2 imitated "Batman"'s campy humor to compete against that show's enormous success. Bright outfits, over-the-top action, outrageous villains came to the fore, in outlandish stories. Stories giving all characters focus were sacrificed, in favor of a growing emphasis on Smith, Will, and the Robot. According to Billy Mumy, Mark Goddard and Guy Williams both disliked the shift away from serious science fiction. The third season had more straight adventure, with the "Jupiter 2" now functional and hopping from planet to planet, but the episodes still tended to be whimsical and to emphasize