Cheyenne | Season 6 | Episode 1 | (Winchester Quarantine)

Episode aired September 25th, 1961

When his herd is wiped out by Texas Fever, Cheyenne is asked by a beautiful woman to help push her herd which carries the fever through a quarantine. He soon realizes she has other plans for him nor does want to infect more cattle.

IMDb: https://www.imdb.com/title/tt0540199