"Border Saddlemates" was one of the better Rex Allen westerns. HE plays a government veterinarian sent to Pine Rock, Montana to stand in for the resident vet who is away. He meets his "assistant" Slim Pickens the local dog catcher.
Rex is invited to the Richards Fox Farm where he meets owner Mel Richards (Forrest Taylor), his pretty young daughter Jane (Mary Ellen Kay) and her young brother Danny (Jimmy Moss). As the local vet, Rex is also invited to attend a planned fox hunt headed by Trading Post owner Steve Baxter (Roy Barcroft). As the hunt progresses, Baxter's horse is spooked by a cougar and he is dragged by his horse. Rex and Slim come to the rescue, in an exciting sequence.
Baxter it seems, is running a counterfeit ring, printing the bogus currency in Canada and shipping it to the U.S. in a hidden compartment in the fox cages being shipped across the border.
Danny's pet fox comes down with an illness which Rex cannot diagnose. He takes the animal back to his office. While he looks for a cause of the illness, he imposes a quarantine on the Richards farm which includes pelts packed up for shipping to the U.S. Baxter arranges for the sick fox to be stolen from Rex's office by henchmen including Ned Shelton (Bud Osborne). Rex and Slim pursue the bandits and catch one of them. As he is about to talk, Shelton bushwhacks him.
As luck would have it, Mel Richards is reluctantly a part of the scheme. Baxter holds Richards' past over him to force him to be a part of the operation. When Richards threatens to expose Baxter, henchman Matt Lacey (Zon Murray) guns him down.
Young Danny, meanwhile has found his pet in the wilderness and brings him to the Richard's barn to hide him. While there Baxter's men arrive and begin to load the counterfeit money into bags. Danny see them and they nab the youngster. Rex discovers the phony cage bottoms and put two and two together.
Baxter fearing capture escapes with Danny as hostage. Rex and Slim go after him and.......................................................
Allen and Kay make good couple much like Roy and Dale. She had a pleasant voice and the songs could have been written for Roy and Dale. Rex had a backup group known as the Republic Rhythm Riders a poor man's Sons of the Pioneers, I suppose. The songs were spread out enough so not to detract too much from the story.
Hard ridin' Slim Pickens had been a rodeo clown prior to his entering pictures. He had a long and prosperous career in "A" features following the Allen series. Roy Barcroft, Republic's busiest bad guy is as mean as usual.