Ex-police/army dog King inherits a fortune from an eccentric millionaire. But someone poisons him for his fortune. He gets to go back to earth as a human detective to bring his killer to justice and protect the girl who used to look after him.

Fearing that his recently-acquired step-mother, Ann Dennis, is competing with him for his father's affections, and saddened by the death of his dog, young Danny Mitchell seeks consolation in the companionship of a ferocious, Nazi-trained police dog, Rusty, brought to the U.S. by a returning WWII-veteran. The step-mother, with tender understanding, eventually wins Danny over while Danny pacifies his new dog.

When a man is wrongly accused of murder, a dog helps clear his name.

The 101st Cavalry discover the survivors of an Apache raid on a wagon train. Feature film from The Adventures of Rin Tin Tin TV show.

During a feud between remote families, a dog saves the day.

A Mountie and his dog must bring in his wanted brother.

A cowpuncher is out for revenge on the gent who seduced his sister into a dance hall by advertising for a school teacher and then finished her off before he blew town. Rex the Dog and Starlight the Horse do their part in Jack Perrin's victory over the villain and his assistant.

Silent western starring Wolfheart the dog. A band of settlers on the Oregon Trail is attacked by outlaws, who steal their horses. The horses are returned and the outlaws chased off by three cowboys who just happen to pass by. Years later, the three cowboys again save the settlers when they are threatened by some rebellious farm-workers.

From James Oliver Curwood's novel about a wolfdog.

A dog and his dead master's brother track down murderers.

Rinty rescues heroine June and hero Pat from all manner of desert dangers, both natural and man-made. The film's high point of tension finds the canine star rescuing Nye from a deep pit.

Rin-Tin-Tin's first sound feature, in which he plays an abused dog recused by a young girl in the far north.

Bill Holmes rescues Rinty from a car wreck not realizing that there is a stolen $50,000 diamond necklace hidden in the dog's collar.

Canine star Rin Tin Tin makes his all-talking (all-barking?) debut in Warner Bros.' Frozen River. In characteristic fashion, Rinty braves the elements to rescue heroine Jane from the villains, a gang of cutthroats and thieves.

A Mexico/United States border patrol officer is aided by his police dog, Rinty.

Rin-Tin-Tin leaves his usual far north and ranch settings for Africa.

A police dog helps to track down two payroll robbers.

Sergeant Ken Strange, of the Canadian Mounted Police, and his dog, King, are on the trial of the murderer.

A young soldier must balance the difficulties of being a military dog handler with his own personal life.