In the years before World War I, Montana cowboy Fred Barton was employed by Czar Nicholas II to help establish a horse ranch--the largest in the world--in Siberia to supply the Russian military. Barton later assembled a group of American rodeo stars and drove horses across Mongolia for the war-lords of northern China, creating a 250,000 acre ranch in Shanxi Province. Along the way, Barton became part of an unofficial U.S. intelligence network...