They've Got a Secret Farscape : Season 1 Episode 10

During routine searches for Peacekeeper beacons, D'Argo falls down a chute, destroys a Peacekeeper shield and gets ejected into open space. After being rescued D'Argo starts to think that everyone on Moya are members of his family. Moya, meanwhile, starts to alter the environmental conditions inside the ship so that it is hardly habitable for the crew. .