Nine years later the Red Dwarf crew are older but still none the wiser. Lister's busy day of annoying Rimmer is interrupted by the discovery of a dimension-hopping leviathan in the ship's mile-deep water tank.

Rimmer's replacement, Katerina, is determined to guide Lister back to his home planet. But Earth in 2009 is not everything the boys had expected, and Rimmer has no intention of being replaced.

The brand new three-part series concludes. Knowing they are destined to die, the Dwarfers track down those who created them to plead for more life.