The Black Grass Fever

Hopalong Cassidy was already a hit on television when Mutual Broadcasting began airing the radio version. A short time later, it moved to CBS, where it aired until 1952. Set on the Bar-20 Ranch, the show featured the adventures of "Hoppy" (played by William Boyd), his white horse, Topper, and his grubby old pal California Carlson (Andy Clyde).

This episode originally aired on November 11, 1950.