Farscape (1999)

S1E6 Thank God It's Friday, Again

The crew lands on a planet inhabited by joyful laborers. Before long, D'Argo and Zhaan become engrossed in their tasks and decide not to leave the ship. Meanwhile, Rygel faces a serious crisis as his bodily fluids turn volatile. Aeryn and Pilot scramble to uncover the cause of this dangerous condition before it’s too late for Rygel.