When they learn that their brother Matt Denton is awaiting trial in California, charged with train robbery, deputies Tom Denton and Fred Denton leave their home in Fort Grant, Texas and head west. They arrive in Tulare just in time to rescue Matt from being hanged, but a guard is killed during their escape. Ed Larkin who framed Matt, falsely accuses them of a long list of crimes. They return to Fort Grant so that Tom can see his sweetheart Laura Brook. They encounter outlaw Bill Devlin who persuades them to hold up a train which Laura unwittingly told them would carry a large payroll. Soon the whole territory is enraged at their deeds. They return to Fort Grant to hold up the two banks that are filled with huge sums of cattle money.
Just before the turn of the Century two young outlaws team up for a historic ride. Based on historical references, the "True Story" of Butch Cassidy and the Sundance Kid.
A Mexican gang headed by vicious Pedro terrorizes the land between New Mexico and Arizona. Jeff a youth whose father has been killed by Pedro seeks revenge.
Scanlon is pulling off a land swindle by selling lots in a ghost town claiming the power company is bringing in a line. As a bonus he throws in shares in a worthless gold mine. Gene is on to Scanlon and tries to get him to buy back the deeds by salting the mine with gold. But when a new vein is really discovered Gene has to stop the sales but is trapped in the mine by Scanlon's men.
A landslide has diverted water from the Baldwin ranch to Cambert's. With their cattle dying, Cambert refuses to let them have any water. Easterner Larry Knight takes a job with the Baldwins and he has a plan to divert the water back to the Baldwin ranch. But Phil, jealous of Kitty's attraction to Larry, lets Cambert know of the scheme.
Gene and Frog, out to stop a bunch of cattle rustlers, assume the identities of what they believe to be dead bandits, which soon gets them in big trouble.
To bring water to their valley, ranchers have raised money to build a dam. When that money is stolen, Allison suggests the ranchers sell their stock to a friend of his thereby getting the money needed to complete the dam. Roy has a clue that Allison was involved in the robbery and is out to get control of the valley. So Roy and the boys try to delay the sale of the stock while they look for proof against Allison.
The fifth film in the 24-film Range Busters series finds "Crash", "Dusty" and Alibi, on their way to Gopher City to become the town's peace officers. In the saloon, young Jimmy Rowell is losing money in a crooked poker game to saloon owner Bob Harmon. Harmon and his henchman Bart Gill are in reality wanted-outlaw brothers Jim and Ike Breedon seeking revenge against Jimmy and his school-teaching sister Sally as their father, a circuit judge in Nebraska, had sentenced their brother Bud to be hanged. Harmon involves Jimmy, because of his gambling debts, in a robbery of a rancher known to keep large amounts of money at his ranch. The Range Busters break up the robbery, Bart is killed, as is Rancher Fleming, and Jimmy is wounded but escapes. Harmon, setting a trap for Crash, tricks Sally and Jimmy to his hideout, and Crash follows them.
The Hurley's own a lumber mill and want to harvest all the timber in the valley. They kill the Forester and substitute their brother Dusty in his place. Dusty then says all the trees are infected and must be cut down. But Rex Allen is suspicious and writes to the Forestry Department and gets involved with the murders.
When his young son is shot, John Wellington kills the culprit and flees. But his son Johnny recovers and is raised by Sir George. Some twenty years later Johnny sets out to find Sir George's missing granddaughter.
Because of his difficult character, Colonel Lennox, commanding at Fort Sharp, a remote outpost on the border of the United States is hated by the soldiers of his troop. The situation is even more complicated when the fort is attacked by Indians.
A prospector is looking for a lost gold mine and finds aid in his search through the efforts of his friend, Stormcloud, whom he has aided in the past. Stormcloud gives the prospector's son a map leading to the mine in repayment for his past kindness. When a claim jumper learns about the map, he targets the prospector and his son in order to get the treasure.
Wildcat Kelly has been dead and buried for years. Or has he? Dale is a reporter for an Eastern magazine who comes West to find out the true story of Kelly, of whom Gabby seems to have mysterious knowledge.
Dakota Joe is a hired gunman. For that reason he arrives at a border ranch in Mexico hired by the landowner Don Carlos, to eliminate the village doctor, a good man who helps the poor. So Dakota Joe decides not to fulfill his commitment and together with a former outlaw who is now honored, they plan to steal all the money that Don Carlos stores in the safe and to support the revolution of Zapata