5x23 Mortal Mission
First Aired: Mar. 12, 1979 on NBC
Summary: Two men sell mutton to the people of Walnut Grove, but the mutton contains anthrax. Charles and Jonathan go on a journey to get medical supplies, and are held up by a man. Laura, who is sick, goes blind.
Watch Episode On:- VUDU (purchase)
Guest Stars[no credits found]