Commander Ray Neptune and his crew aboard the Nebula-75 explore uncharted regions of space, encountering bizarre alien life forms and civilizations.

Commander Ray Neptune of the spaceship Nebula-75 was all set for a long mission with his crew of civilian recruits, but nothing could have prepared him for the challenge of the ship being flung into the far reaches of space by forces unknown. Now, the crew strive to make their way back to Earth, encountering an array of strange characters along the way. Filmed in Supermarionation.