During the Civil War, a Union spy, Andrews, is asked to lead a band of Union soldiers into the South so that they could destroy the railway system. However, things don't go as planned when the conductor of the train that they stole is on to them and is doing everything he can to stop them. Based on a true story.

Rancher Clay and his brother, Steve, head out across the Sonora mountain pass, followed by Lednov, an ex-con seeking revenge on Clay for putting him behind bars. Clay and Steve unexpectedly cross paths with a group of dance hall girls -- including Mary, Marcia and Helen -- whose stagecoach has broken down, and help them get to the nearest ranch, where Lednov unfortunately catches up to Clay.

In 1865, a troop of Confederate soldiers led by Major Matt Stewart attack the wagon of gold escorted by Union cavalry and the soldiers are killed. The only wounded survivor tells that the war ended one month ago, and the group decides to take the gold and meet their liaison that knew that the war ended but did not inform the troop. The harsh Rolph Bainter kills the greedy man and the soldiers flee in his wagon driven by Major Stewart. When they meet a posse chasing them, Stewart gives wrong information to misguide the group; however, they have an accident with the wagon and lose the horses. They decide to stop a stagecoach and force the driver to transport them, but the posse returns and they are trapped in the station with the passenger. They realize that the men are not deputies and have no intention to bring them to justice but take the stolen gold.