Sliders
The Other Slide of Darkness
S3 E21:
A man wearing a gas mask picks flowering plants from a foggy forest, when he is set upon by a group of the natives. They cut the hose, and watch him die, gasping. Shortly, the Sliders land in the forest and all but Maggie (Kari Wuhrer) start coughing and gasping. She leads them out of the fog, while the natives, accompanied by Colonel Rickman (Neil Dickson), watch their struggle...
Starring
Oona Hart, Kevin Quigley, Franc Ross