In Colorado in 1865, after gold
assayer is killed, a posse pursues the suspect, Lane Waldron. When Lane is caught, the posse becomes a lynch mob. Lane claims that the assayer has examined a sample from his mine but denies shooting him. A noose around Lane's neck is shot in half at the last second by an unseen marksman, who is Brett Sherwood, a Confederate captain. Lane and Brett escape to a cabin, where Brett leaves a gun unattended as a test. Lane grabs it and aims at Brett, only to find that the gun is unloaded. Brett binds Lane's hands behind his back and leaves him in the cabin. Lane's sweetheart Chris arrives at the cabin and releases him. They then track Brett, capture him and take turns guarding him for the night. When Brett discusses the war with Chris, he finds that she her loyalties differ from Lane's, as she hates the rebels and General
William Quantrill for killing her family. During the night, Brett escapes his bonds and a struggle ensues, during which Lane's leg is broken. Brett stops his escape to help Lane. Brett and Chris find a cave and move Lane inside. As Brett leaves to find a doctor, Quantrill and his raiders appear, taking Lane and Chris captive. Quantrill has plotted an ambush to attack the army. One of his men tries to assault Chris, and Chris shoots him, which alerts the army of their presence. Quantrill learns of Lane's gold mine and decides to save him. Quantrill sends Chris and Randall to town for a doctor. During their absence, Brett questions Quantrill's motives. Brett and Chris return with a doctor who operates on Lane, saving his leg. However, Quantrill resolves to kill the captives anyway, so Brett brings them food and guns and helps the doctor escape to find help. After the doctor is caught and killed, Brett sneaks away to seek help. A band of Indians who had been working with Quantrill attack Chris and Lane at the cave. Lane is shot by a
Ute, who is killed by Chris. As he lies dying, Lane says that he wants Chris and Brett to have his gold mine. Brett arrives with the army and posse and then pursues and kills Quantrill. Brett confesses that it was he who had killed the assayer, who had been trying to cheat him and brandished a weapon. ==Cast==