This is the true story about a young man named Leroy Wiley who, at the age of 17, joins the Texas Rangers in the wild new frontier. Leroy and the Rangers follow a herd of Texas Longhorns protecting them from the Mexican bandits. While trying to balance his family obligations and Ranger duties, Leroy wins the heart of, and marries a young girl from Georgia. Leroy returns to his Ranger Company in Texas to help settle a dispute between ranchers and homesteaders over access to water from Noland`s River. When the local sheriff is murdered, the Rangers are forced to do battle with a cattle baron and his hired gunmen. After surviving an ambush by the gunmen, Leroy and another young Ranger are ordered to escort a prisoner to the US Marshall in Ft. Worth, only to be taken captive by a band of Comanche. The Rangers barely escape with their lives, but their prisoner, the son of the cattle baron, dies a violent death at the hands of the Comanche. Leroy receives orders to join another Ranger ...