Ken Williams is determined to discover the identity of the mysterious Rattler, who preys upon railroads and transportation companies like that owned by Jane Corwin. The Rattler is especially difficult to catch because of his skill at disguising himself as other people.
Ken and his sister are separated while young when the Indians attack their wagon train. Ken, now grown, is sent after the outlaw known as the Golden hair Girl only to find that she's his long lost sister.
Wanting the Lance ranch, Burkett kills Lance and brings in an imposter to pose as the heir Ken Lance. Ken learns of the plan, captures the imposter, and arrives posing as himself. In an ensuing gunfight a man is killed and Ken is in trouble when not only is he accused of the murder, but the...
Gangster Chandler and his accomplice Tracy arrive at a dude ranch. Cowboy Kentucky arrives at the same time. When Tracy double-crosses his boss and has the stage robbed, Kentucky finds the outlaws and brings them in. Tracy frames him for the murder of the driver but his pal Cactus gets him out of...
Skinner and his gang are grabbing land from the ranchers. When they go after Kerry's ranch Ken stops them. Skinner frames Ken for rustling but the Sheriff is on Ken's side, and with the help of his brother Earl's Boy Scout troup they go after the gang.
After Sheriff Ken puts money in the safe, his brother Clem gives Rawhide the combination. With the money gone the disgruntled townsmen make Boots Sheriff and lock up Ken. Clem, now a prisoner of Rawhide, has a change of heart and sends Ken a message with the outlaw's location. Ken escapes by...
Bill, who is about to lead a wagon train to California, has a map to a valuable gold field and Rocky is after the map. When Rocky and his men attack, Ken Manning breaks it up and later identifies Rocky and his men as the attackers. Expelled from the wagon train, they stampede a buffalo herd puting...
Wealthy Henry Hanley takes his family to a dude ranch. But his daughter Gloria's boyfriend Eric is waiting and he is after Hanley's money. Ken overhears Eric's plan and abducts Gloria to stop the elopement. The outlaw Lacrosse and his henchman then catch Ken without his guns, take off with Gloria,...
Bud Rand, a cowboy who is charged with the care of Little Billy Rand, accepts an offer to appear with Copeland's Wild West Show to ride a horse called "Mankiller." Dude, Copeland's righthand man, resents Bud's attentions to Mary, one of the performers, and when they fight it out, Bud is the victor....
Accused of a murder he did not commit, Ken leaves the country. Three years later Evans finds him in the jungle. When Evans dies, Ken seeing the resemblance, assumes his identity and returns to clear his name.
Just after Pocatello's brother is killed, a wounded Pocatello arrives being chased by the Sheriff. Larkin switches the identity of the two brothers and then expects Pocatello to assume his brother's role in the outlaw gang.
After a work crew stringing telegraph wires across the Great Plains is slaughtered by Indians, Pat O'Leary, the company superintendent, must take out another supply train to make the dangerous trip across open country. The Indians attack and are driven off. On the day the wires are finally strung,...
Howell breaks up a train robbery only to find that it's a fake. However the money is missing and he is blamed. He escapes and sets out to find the real thieves. He must also avoid being caught visiting the Collins ranch to see Doris.
Government man Fiddlin' has joined Wolf's gang and Banty has become his friend. When Fiddlin' objects to Wolf's kidnapping of Ann, he is left in a burning building. Rescued by his horse Tarzan, he convinces Banty to help bring in the gang.
Ken not only has to fight with his brother Wally over the girls, he has to try and stop the conflict between the cattlemen and the sheepmen. It gets worse when Butch kills Judy's father.
Cal Roberts can ride anything with four legs. He enters the contests held at big rodeo. He wins all honors and meets a girl who races horses to help her father clear pressing debts. Complications follow, but Cal wins the girl.
Honest John is pulling off a swindle by buying cattle in Texas with worthless scrip and selling them in New Mexico for cash. Ken is leading the cattle drive not knowing that when they cross the state line Honest John's plan will have succeeded.
