Episode Detail: Mortal Mission - Little House on the Prairie
Diseased mutton produces an outbreak of anthrax in Walnut Grove. Michael Landon. Seth Berwick: Matt Clark. Garvey: Merlin Olsen. Slade: Jerry Hardin. Dr. Baker: Kevin Hagen. Virgil Fenton: Charles Parks. Garth Fenton: Peter Kilman. Bess: Carolyn Conwell.