The crew discover a giant spacecraft in which they find the frozen body of Caroline Carmen, a former member of the Red Dwarf crew. They take the body back to Starbug, only to find out that it's a zombie that is being animated by an especially nasty virus called 'Epideme'. After a short while Lister becomes infected with Epideme and has only a short time to live. Kryten hooks up the Universal Language Translator and manages to establish communication with the virus. He tries to talk the virus out of killing Lister, but fails. As a last desperate measure, they force the virus into moving into Lister's arm, which is then amputated.