Quarantine (Red Dwarf)  "Quarantine" is the fourth episode of science fiction sitcom "Red Dwarf" Series V and the twenty eighth in the series run. It was first broadcast on the British television channel BBC2 on 12 March 1992. The episode, fifth to be filmed, was the first one to be solely directed by Rob Grant & Doug Naylor. The episode has Rimmer contracting a holo-virus and turning against the rest of the crew. "Red Dwarf" receives a distress signal from a hologram of Dr. Hildegarde Lanstrom and proceed to investigate it at the Viral Research Centre. While Dave Lister, Kryten and Cat venture into the complex, Arnold Rimmer is advised to return to "Red Dwarf", as they plan to rescue Lanstrom but cannot bring her aboard their "Starbug" because it can only generate one hologram. Annoyed at Kryten using Space Corps Directive on him, Rimmer is given a copy of the Directives Manual to read for his trip back. However, upon finding Lanstrom, Lister, Kryten and Cat find that she contracted a holo-virus that turned her insane and gave her Psionic powers, but also learn that this has shortened her life-span. The group thus opt to give her the run-around until the virus kills her, unaware of her using a radio to contact Rimmer. When Lanstrom finally dies, the group examine her research notes, discovering that she was working on a theory that viruses can be positive as well as negative and isolated a number of positive virus  On the return trip, Lister tests a virus that Lanstrom isolated that boosts luck, discovering it gives him incredible luck for a brief time until his body's natural defences combat it. Upon returning to "Red Dwarf", the group find that Rimmer has taken full control of the ship after returning ahead of them, and redirects their "Starbug" to the ship's quarantine bay as part of a Space Corps Directive he had read. Forced to endure isolation for five days and slowly finding themselves beginning to get on each other's nerves, the group realise that they can challenge Rimmer to re-test them. However, they soon discover that he has contracted the holo-virus, suspecting that Lanstrom managed to pass it onto him via "Starbug"s radio. Realising that they are in danger, Lister opts to use the luck virus to save them, not only managing to get them out of quarantine, but also allowing him to find equipment that Kryten needs to purge the virus from Rimmer.