Northwest Passage

Episode: Death Rides the Wind
Part: David Cooper
Genre: Western
First Aired: January 23, 1959
Runtime: 30 mins
Production: MGM Television

Two escaped convicts break into a trapper`s cabine. While the man is sleeping, they eat his food, steal his pelts and a rifle and leave. What they don`t know, however, is that the trapper wasn`t sleeping --- he was dying of smallpox. When the Rangers discover what happened, they set out to capture the fleeing men before they`re able to get to Portsmouth and bring that contagious and fatal disease with them.

sources: imdb