John Thornton, is a fearless man who's after more than gold; he wants to do what's right. Thornton works for the U.S. mail and is the only person daring and smart enough to figure out how to travel the deadly 600 miles from Skagway to Dawson, Alaska in the icy winter. His incredibly dog Buck is by his side and part of how he survives.
While Native American Wolf is being pursued by the FBI for having taken the law into his own hands, when his mother was raped and killed on their reservation he crosses paths with Cash, a down and out musician who is coping with the end of his marriage. An unlikely friendship develops, as they ride together towards the Teton mountain range, where Wolf will spread his mothers ashes.
A young man is plunged into a life of subterfuge, deceit and mistaken identity in pursuit of a femme fatale whose heart is never quite within his grasp.
At a Mexican ranch, fugitive O'Malley and pursuing Sheriff Stribling agree to help rancher Breckenridge drive his herd into Texas where Stribling could legally arrest O'Malley, but Breckenridge's wife complicates things.