Anticipating an immanent nuclear war that would leave the Earth incapable of supporting human life, Lars Kranston convinces a handful of colleagues to leave Earth to start again on Mars. His paramour, Betty Stone overhears the plans. She insists that she go along. Lars agrees. When the ship reaches Mars, it crashes, killing everyone but Lars and Betty. Lars buries the crew, presuming Betty to be part of the charred, unrecognizable remains. Betty wakes up in a portion of the wreckage, suffering from total amnesia.