South of St Louis is a 1949 American Technicolor Western film directed by Ray Enright and starring Joel McCrea, Alexis Smith, Zachary Scott and Dorothy Malone.

[5] During the Civil War, Kip Davis (Joel McCrea), Charlie Burns (Zachary Scott), and Lee Price (Douglas Kennedy), are run out of town by the guerilla raider and Union Army leader Luke Cottrell, who burns down their ranch.

Though Kip's fiancée, Deb (Dorothy Malone) begs them to stay in the small Texas town of Edenton, the three ranch owners vow vengeance on the Cottrell and decide to head south to find him.

When they get to Brownsville, Texas, Lee decides to join the Confederate Army, while Kip and Charlie attempt to rebuild Three Bell ranch.

Before they do, however, they accept an offer from an attractive local lounge singer, Rouge de Lisle (Alexis Smith), to transport a box of furniture for fifty dollars.

The trio then hires a group of gunmen, one of which is Slim Hansen, who used to work for Cottrell, and heads to Matamoros, Mexico to pick up a shipment of guns for the Confederacy.

When Deborah refuses to leave her duties as a nurse to join him at the ranch, Kip decides to go with Charlie and return to smuggling.