After being captured by a "psy-moon," Rimmer becomes a prisoner of his own thoughts.

When the crew goes exploring on a snowy planet, they cross paths with a hologram scientist infected with a nasty virus.

Lister and Kryten inadvertently blow up the Red Dwarf with a new invention that makes two copies of any object.

While exploring an ocean planet, Lister, Kryten, Rimmer and Cat discover an abandoned ship whose entire crew committed suicide.