When old money and older entitlement invade Missouri, Ruben Beeler is dispatched by the Federal Marshals Service to investigate complaints from small farmers and ranchers that a wealthy Englishman is taking over an entire county. Rube leaves his wife and their baby at home, and enters into a conflict where might is right, and Sir Merrit Treadstone is prepared to do whatever is necessary to establish the Calico Cattle Company and his new American kingdom. With Marion Daniels and Homer Poteet, Ruben faces poison, arson, and murder as he struggles to put down a British invasion and stay alive, on The Calico Trail.