This is the fourth episode in the series over the Civil War in the Southwest.

In this episode, Baylor and his Texans march north toward Fort Fillmore to take the Fedral post by surprise, but his plans are thwarted. Instead, he marches to the Confederate aligned town of Mesilla. Eventually, Yankee Major Lynde attempts to take the town from the Rebels but is repelled which ultimately leads to his stunning surrender in the high desert heat after abandoning the Fort completely. The hopes and dreams of a Confederate Empire in the Southwest become real as the area of southern New Mexico and modern day southern Arizona are declared the Confederate Territory of Arizona by Governor Baylor.