Three million years ago, a radiation meijubar.net leak killed the crew of the mining ship, Red Dwarf. The only survivor was Dave Lister, the chicken soup machine repairman. He spends his time on the ship with a holographic projection of Arnold Rimmer (his dead bunkmate), Cat (a life-form that evolved from Dave's cat), Holly (the ship's senile computer), and Kryten (a service mechanoid).
