The four Newton brothers are a poor farmer family in the 1920s. One day, the oldest of them, Willis, realizes that there's no future in the fields and offers his brothers to become bank robbers. Soon the family agrees. They become very famous robbers and execute the greatest train robbery in American history five years later.
A ruthless killer (Gary Hudson), hell bent for revenge, escapes prison and vows to kill the Texas Ranger (Sam Jones) who sent him there. With the aid of his two brothers, he set off on an explosive journey to make his tormentor pay the ultimate price, a slow tortuous death.