Tom Halliday of the Royal Canadian Mounted Police is implicated and framed on a murder charge. The real killer has gone back into the United States, so Halliday, with no credentials, has to cross the border in order to find and capture the killer.
Tex Mason and Peggy Turner each inherit one half of the Triple X Ranch. Thomas wants the ranch and he has Triple X hand Joe let his men rustle their cattle. Tex not only has to fight the rustlers, he must also contend with Easterner Peggy's idea of what a ranch should be.
Rancher Tim Clark borrows money from Bob Russell, who then rustles Clark's cattle so he will be unable to repay the money. Thus Russell is able to cheat Clark out of his ranch. Clark becomes a prospector for silver and ultimately comes to settle accounts with Russell and crooked deputy Bendix.
Hanley shoots a man and then frames Bill Roberts. Being the Judge he then holds court planning to hang Bill but Bill's friends effect his escape. Andy tries to lead Hanley astray by misleading him as to Bill's location. But Bill changes plans and Hanley catches up with him and this leads to the showdown.
In order to find out who is smuggling guns to the Indians, an army officer pretends to have been demoted and hold a grudge against the army, hoping that the smugglers will try to contact him and take him into their gang.
Canadian Mountie Mason is sent south of the border to look for a horse thief with only a watch chain for evidence. He befriends young Andy and when Calhoun hits Andy, Mason and Calhoun fight. In the scuffle Calhoun's watch with the missing chain is dislodged. Mason then sets out to bring in Calhoun and his gang.
A man escapes from prison, then joins up with a gang of stage robbers while at the same time working as a deputy in a distant town, hoping to ultimately find the outlaw who killed his father during a robbery years ago.
Newcomer Torrent wins $500 from Olcott and $500 and a wild horse, by riding the horse, from Engle. Then loses the $1000 to Engle in a poker game. Torrent goes to work for Olcott. Torrent fights with Stark and Stark quits and goes to work for Engle. Rustlers are stealing horses. Carson suspects Olcott and Olcott suspects Carson. Sheriff prevents war between them. Torrent stops wild horse stampede. Starks spills beans on Engle. Torrent kills Engle and wins Patsy Olcott.
Rigby, Larribee, and Grant each have one third of Bill Joyce's map locating his gold mine. The three plus Joyce's sister Helen head for the mine. An accident with a runaway horse carrying supplies leaves them stranded in the desert with very little water.
The Rangers in New Mexico are being disbanded but Bob Houston gets them to make one more ride. They go after the outlaw gang led by Hashknife. They catch Hashknife, but he escapes taking Barbara with him and Bob and Slim have to go after him again.
Heck Claibourne has been involving young Russ Whitely in his cattle rustling schemes, and when they are nearly caught by Sheriff Doug Barrett and deputy O'Hara, their cohort, Luke, shoots and kills O'Hara.
The cattle on the Langton Ranch are mysteriously dying and cowhands are disappearing or being shot. Two Langton riders bring a wounded rider they found wounded and hung up in a barbed-wire fence to Sally Langton and report that her father is missing. A lone rider, Jess Ryder, tops a rise and sees a band of men working on some calves in a secluded corral, and he frowns as he sees what Bat Murchinson is doing.
Tex Robbins, a Texas Ranger, posing as "Wolf" Cassidy, a notorious Chicago gangster, works his way into the rustling gang and hideout of "Three-Star" Henley, but his plans go wrong and he has to fight his way to victory.