Ensemble western set after the Civil War. The naked spur refers to our motivations: bounty hunter James Stewart is driven by revenge; wandering prospector Millard Mitchell by gold; and disgraced cavalryman Ralph Meeker by sexual depravity. All are distorted by greed and compete to take in a fugitive killer (Robert Ryan), for a cut of the $5000 reward.
And the murderer will seek to divide his captors and escape with his girl (Janet Leigh) as they travel through the Rockies back to Abilene. Most of the entertainment is watching the crazy, glittery eyed gunman use the men's weaknesses against themselves, like Iago in a cowboy hat.
Robert Ryan gives the dominant performance. He keeps his wild strategies secret, but he plainly enjoys the barbed malice he scatters in the path of his adversaries. No one could sneer quite as repellently as Ralph Meeker and he feels dangerous and completely mercenary as an ex-army rapist without any conscience at all. He's even more loathsome than the killer.
James Stewart gives a complex portrayal as a peaceful man who has survived the Civil War with (what we'd call now) PTSD. It's an actor's film, but visually striking with magnificent colour photography of the grandiose Rockies. It's all filmed on location and there's an exciting action finale shot in the rapids of the rugged, picturesque Colorado River.