It was a routine passenger flight to Mars. Everything on course, until..the gigantic ship gave a slight shiver and fell apart at midsection. The "Arcturus," invincible cruiser of the void, was being sliced to pieces by blinding planes of light! Steve and Nadia, cut off from the rest of the ship, watched in horror as the lethal scissors of light came closer to their hiding place, until they were trapped in space by a frightful enemy..the super-scientists of Jupiter!