Red Sundown is a 1956 American Technicolor western film directed by Jack Arnold and starring Rory Calhoun, Martha Hyer and Dean Jagger.

[2] It is based on the 1956 novel Back Trail by Lewis B. Patten and had the working title Decision At Durango.

Alec Longmire (Rory Calhoun), a gunfighter, decides to change his ways after nearly losing his life.

He reforms, becoming a deputy to Jade Murphy (Dean Jagger), an honest sheriff trapped between warring farmers and cattlemen.

He also falls in love with the sheriff's daughter Caroline (Martha Hyer) who despises gunslingers.