As the Robinson family prepares to leave Earth to colonize Alpha Centauri, a spy from a foreign country, Zachary Smith, becomes trapped aboard while trying to sabotage the space vehicle. After liftoff, the ship is whisked off course and into a meteor
storm due to Dr. Smith's extra weight upsetting the navigational computers. In and attempt to save himself, Smith revives the
crew early, resulting in the Robinson family with Smith becoming Lost in Space....