Farscape - Season 2 Episode 14 -

Chiana returns from a Commerce Planet with a cute little creature called a Vorc that is said to be capable of hunting down parasites which may have inadvertently come on board with the crew's supplies. Aeryn thinks Chiana was swindled; the Vorc appears too scatterbrained and unimposing to hunt parasites even if Moya had parasites - and Aeryn doubts Moya does. But Crichton soon encounters a hostile beast eating its way through one of Moya's walls. However, when he tells the others about the sighting, they are reluctant to believe him. Crichton is having an increasingly...