The best Koko’s movies

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.

Rex Allen ('Rex Allen'), a U. S. government veterinarian, rides into the picturesque town of Pine Rock, near the Canadian border, to take the place of the regular vet who is on vacation. Used to doctoring animals in Texas, Allen finds out that herein the heart of the fox-farming industry, he is to doctor the most finicky and high-priced of fur on four feet. On the farm of Mel Richards (Tom London), Allen learns the habits of the valuable creatures from Richard's niece, Jane (Mary Ellen Kay, and her ten-year-old brother Danny (Jimmy Moss'), and on his own learns that the trusted owner of the trading post, Steve Baxter (Roy Barcroft) heads a gang that is smuggling counterfeit money across the American/Canadian border in the fox cages.

Ex-cavalry buddies, Rex and Slim, band together to capture a wild stallion, solve a murder and thwart the killers from cheating a boy out of his inheritance.

Two men searching for black pearls are marooned on an island when their crew mutinies. There they run into a beautiful girl who had been washed up on the island in her childhood. They must fight angry natives and a typhoon in order to survive.

Rex, Slim and the boys are fired by a wealthy rancher but decide to help him out when his daughter intends on marrying a shifty, gold-digging actor. Meanwhile, the rancher's foreman executes plans for a train robbery.

One-time cavalry officer Rex Allen, between jobs as a star rodeo rider, is asked by his former commanding officer, Colonel Bigelow, to help settle a dispute between the army and local ranchers. The cavalry has commandeered a large parcel of land needed to test their newly-designed tank and prominent rancher Jenson has encited the locals to rebel at this intrusion. It is up to Rex and his sidekick, Slim, to thwart Jenson and convince the residents that these army tests are essential.

Rex Allen and Slim Pickens are sent from Washington, D.C. to California in 1850 to speed up deliveries of mail to the goldfields, and find a destructive feud raging between two stage-line owners, Sam Sawyer and John Brockway. In their attempts to have their stages and drivers first on the dock to get the mail brought East by ship, the two have damaged each other's equipment and schedules to the point that no consignment of mail reaches the goldfields intact or on time.

Rancher Rex Allen captures a bandit, Delgado, a henchman for crooked Sheriff Webb and saloon owner Mike, who run the town to suit themselves, but Rex forces the sheriff to jail Delgado. When Marge, who runs the town newspaper tells Rex she is afraid to attack the sheriff in print, Rex decides to run for sheriff. Webb and Mike frame Rex and his partner Slim on a murder charge and they are jailed.

Cattle buyer Rex Allen rides into Taskerville and sees two men toss Slim Pickens, a water diviner hired by the local ranchers, into a wagon. Rex chases the wagon to the barn of rancher Lem Shaver, where he learns from Slim that Russ Tasker, a wealthy rancher and owner of the only artesian-fed reservoir in the valley, has charged such high prices for water that the ranchers are bankrupt. Tasker's henchmen kill rancher Matt Becker and have his son Johnny branded as an outlaw. Rex learns that the Beckers had found a meager water supply and Rex suspects that is what led to the killing and the charges against Johnny. With the aid of Slim and Johnny's sweetheart, Sue, Rex finds that the Becker spring is fed from the same underground lake that feeds Tasker's well-guarded reservoir. But Rex is jailed for aiding Johnny.

Rex Allen against diamond smugglers down Laredo way

Anchor is building a railroad and to get cheap labor he gets Black Hawk's Indians to attack and burn the incoming wagon train. This forces the settlers to work for Anchor and he pays them in devalued scrip. When Rex figures out Anchor's swindle, Anchor gets Black Hawk to capture him. When Anchor turns on Black Hawk and shoots him, Black Hawk gets a chance to repay a debt to Rex.