Fred Martin is a Southern spy. A northern dispatch bearer is captured, the signature to his messages is forged, and Martin is sent on the dangerous mission of luring the Northern troops into an ambush. He accomplishes this and a terrible battle results, in which the Federals are driven back. The work of Martin is so damaging to the North that plans are laid for his capture, and John Bruce, a secret service man, is assigned to the task.

Bob Evans, a telegraph operator, together with a group of soldiers gets ambushed by Sioux Indians. Wounded, he climbs into a telegraph pole and asks through the telegraph wires for help from the fort. Bob's fiancée Edith comes along with the soldiers. The soldiers find only dead bodies and decide to chase the Indians. Edith stays behind to search for Bob. She finds him and together they return to the fort. The Sioux then attack the fort, but when the situation seems hopeless, the army returns and the Indians are expelled.

A drifter enters town to establish himself. Working as a cowhand, he meets the boss's daughter, who's eager to absorb some local color.

Square Deal Sanderson is in pursuit of a horse thief, but someone else shoots the varmint before Sanderson can offer him a "square deal."

Sailor Bimbo (as Barnacle Bill) jumps ship with his little black book and visits his lady friend, Betty Boop (with dog's ears).

Former crook 'Square' Kelly serves in the First World War. When he returns from the war, one of his comrades-in-arms convinces him to join the police force. But Kelly finds himself confronting the very criminals who made up his old gang.

The U.S. Army and the Indians sign a peace treaty. However, a group of surveyors trespass on the Indians' land and violate the treaty. The army refuses to listen to the Indians' complaints, and the surveyors are killed by the Indians. A vicious Indian war ensues, culminating in an Indian attack on an army fort.