he Ox-Bow Incident is a western film from William A. Wellman and starring Henry Fonda. The year is 1943, it’s the middle of World War 2, and makes an exceptional message about anti-heroism.The Ox-Bow Incident takes place in Nevada in 1885 and begins with Art Croft (Harry Morgan) and Gil Carter (Henry Fonda) riding into the town of Bridger's Wells. They go into Darby's Saloon and find that the atmosphere is subdued, in part because of the recent incidents of cattle-rustling (the stealing of livestock) in the vicinity. Everyone wants to catch the thieves.

Overview from themoviedb.org