When power-hungry Faulkner and Leroux want to divide Texas into smaller sections, instead of allowing it to enter the Union as a single state, Gary Conway and the Texas Rangers must step in to thwart their chicanery.

Ann and Tom Howard arrive from the east to take up ranching. But Tom wants to return and forges his sister's name to the deed and sells it to Larson. Eddie knows there is silver ore in the area and that Lawson, who killed the Sheriff, is out to get all the ranches. When Lawson appoints himself the new Sheriff, Eddie organizes the ranchers to fight Lawson and his men.

When Hadley finds gold on his land, Kirby kills him and then goes after Hadley's ranch. After Eddie Dean foils Kirby's robbery attempt, Kirby forces the assistant land agent Tuttle to sell the ranch to him. But Eddie learns of the forgery thru Tuttle's boss and goes after Kirby.

A ranger in Buffalo Gap has been killed and the trail leads to a gang headed by Bill Judd. When there is yet another killing, the sheriff seems remarkably hesitant to arrest the culprit and may be taking his orders from a mystery boss. Teaming up with Al's pretty sister and her Uncle Bob, Cheyenne and Fuzzy go in search of the mystery villain.