In a futuristic solar system, the wild and lawless planet Venus is controlled by the ruthless "Big Shots." When they develop a powerful new spaceship fueled by a dangerous new source of energy, it threatens the peace. Space Patrol Captain Frank Sage and his brave partner Sadie infiltrate the Big Shots' secret base to find out about this threat. Against all odds, can they make it onto the ship's crew for its test flight? This thrilling space opera from the Golden Age of Science Fiction is packed with action, intrigue and romance as our heroes race to save the solar system from destruction.