Caryl of the Mountains

While the original title, "Trailing the Killer" isn't a misnomer, it was a bit misleading since the "trailer" is a dog named Caesar (Caesar the Dog) and the killer is a mountain lion. But the makers also pointed out that Caesar "is the most intelligent dog actor since Rin-Tin-Tin" which probably lured a few Rin-Tin-Tin fans with a show-me attitude. Caesar prowls around the woods of the Northwest, dispatches a rattlesnake, visits his she-wolf mate and their pups, pauses to watch the dainty habits of a raccoon personally washing every morsel of food before eating it---and that raccoon had enough food to use up several minutes of running time---and then saves sheepherder Pierre (Francis McDonald)) from getting eaten by one mean mountain lion. Rin-Tin-Tin he ain't, but then who was?

Gene Autry follows a clue written on a rock by his murdered partner and discovers a fur smuggling operation near the Canadian border.

Two men, an aging Native American and a ne'er-do-well trapper from North America, race to claim the stallion Eagle's Wing in antebellum Mexico, meeting marauded stagecoach travelers and garrisoned Mexicans along the way.

A fur trapper catches another trapper trying to steal his furs. He stops the thief, but later on the furs are stolen anyway. Rin Tin Tin Jr. tracks down the thief to try to get the furs back.

Rin-Tin-Tin brings the killer of his mistress to justice.

A thug robs and kills a fur trapper. He is caught and locked up by the Mounties, but is soon broken out by his partner. As the Mounties investigate, they discover that the two are part of a ruthless crime ring run by a female gangster.

After suffering a traumatic injury, a policeman resigns from the force and, after he's saved from a suicide attempt, goes to work at a café frequented by gangsters.

In the 1820s, a taciturn loner and skilled cook travels west to Oregon Territory, where he meets a Chinese immigrant also seeking his fortune. Soon the two team up on a dangerous scheme to steal milk from the wealthy landowner’s prized Jersey cow – the first, and only, in the territory.

The Laguna Dam is to be built in Arizona to supply water to desert-land unfit for cultivation or stock-raising. Rival companies bid for the building contract, which leads to violence and danger for Bob Owen and his dog Satan.

Lloyd Wilson, trusted employee of an investment firm, is suspected of theft when $20,000 in security bonds is stolen from his office. Tarzan, the Famous Police Dog, has an intuitive dislike of an apparently respectable citizen, and this leads Wilson and the police to the gang headquarters. Tarzan wins a public citation for his leading part in breaking the case against a desperate gang of criminals.

A rookie cop tries to prove his friend is innocent of a robbery, despite the police commissioner's objection to his use of a trained German Shepherd dog named Ace.

Foxes are disappearing from fox farms.

Silent version of the classic Jack London tale.

Just out of jail and vowing to go straight, former jewel thief Boston Blackie, undertakes the reformation of a pretty blonde who has stolen a necklace from a cabaret dancer. He learns that the jewel belongs to the mother of the blonde girl, and the blonde's philandering father gave it as a gift to the cabaret girl. Now, Blackie must find a way to return the necklace to the owner's safe without arousing the suspicions of the girl's family.

A Mountie (John Preston) catches fur thieves with the help of his horse, Dynamite, and dog, Captain.

The extravagant cop Michael Dooley needs some help to fight a drug dealer who has tried to kill him. A "friend" gives him a dog named Jerry Lee (Officer Lewis), who has been trained to smell drugs. With his help, Dooley sets out to put his enemy behind the bars, but Jerry Lee has a personality of his own and works only when he wants to. On the other hand, the dog is quite good at destroying Dooley's car, house and sex-life...

In 1840, Sam Lash heads west for adventure. He meets up with some Mountain Men, and they head for the Rockies to trap beavers and cats. In Taos he meets Lola, a beautiful Mexican girl from a proud and rich family. They fall in love and he persuades her to elope with him. After they get married, Sam is torn between his love for Lola and his yearn for traveling.

A military explorer meets and befriends a Goldi man in Russia’s unmapped forests. A deep and abiding bond evolves between the two men, one civilized in the usual sense, the other at home in the glacial Siberian woods.

Benji is a stray who has nonetheless worked his way into the hearts of a number of the townspeople, who give him food and attention whenever he stops by. His particular favorites are a pair of children who feed and play with him against the wishes of their parents. When the children are kidnapped, however, the parents and the police are at a loss to find them. Only Benji can track them down, but will he be in time? If he can save the day, he may just find the permanent home he's been longing for.

Dynamite -- Universal's answer to Warner Bros.' canine star Rin Tin Tin -- and his owner Jerry Matthews (Edmund Cobb) come to the aid of a beleaguered rancher in this typical low-budget "doggie melodrama" set in the West.