'Nebula-75' charts the exploits of Commander Ray Neptune and the crew of the spaceship NEBULA-75 as they make their way across the stars, encountering strange worlds and forms of life hitherto unknown by mankind.
The crew of the Nebula-75 inadvertently find themselves the stars of the latest motion picture by renowned filmmaker Dave the Director, who is making his last great film before he retires.
When the Nebula-75 crash lands on a mysterious planet Commander Neptune and Doctor Asteroid are lucky to escape with their lives. However, someone has a vested interest in their demise...
Frustrated by the delays in launching a rescue mission to retrieve the Nebula-75, General Ganymede of the Zodiac Space Centre decides to take matters into his own hands. Little does he know, however, that forces from space conspire to use him against the crew he seeks to save...
When Commander Neptune goes missing during a mission to locate a valuable, yet highly volatile, fuel source, his crew must face the devious Captain Caswell, scourge of the seven space winds.
When Doctor Asteroid spots signs of life on a planet that should be totally incapable of supporting it, the crew of the Nebula-75 send Circuit to investigate. But when Circuit is seemingly attacked, they must face hazardous conditions to discover what has become of him...