The Return of Boston Blackie

Reformed criminal Boston Blackie is outraged when a judge refuses to grant a pardon for a dying friend. He hires Norine, his now-dead friend's daughter, to get to the judge through his son Rudy. However, things don't work out quite as Blackie had planned.

The story of a champion Eskimo sled dog named Kavik who survives a plane crash in the wilds of Alaska and is found and cared for by a young boy named Andy Evans. But the dog's owner finds Kavik and takes him back to his home in Colorado where the dog escapes and embarks on a 2,000-mile odyssey in search of Andy.

An orphan boy on his way to live with his uncle picks up a stray dog, and the two become fast friends. However, the uncle doesn't want the dog, and when chickens are found dead, the uncle accuses the dog of killing them. The boy decides that it's time he and the dog hit the road so they run away, and meet up with an elderly man who also ran away from a home where he believed he wasn't wanted either.

Bill's separated from his litter, making friends with the wild creatures until he's found and adopted by young Kathie. An accident separates him from her, and he's drafted into K-9 duty in the trenches until battle fatigue takes its toll and he turns vicious. And even though he finds his way back home, he may be condemned as a killer.

A girl seeks revenge after a Wall Street broker had falsely accused her father and sent him unjustly to prison.

Boston Blackie is a former prison inmate campaigning to outlaw Warden Benton's infamous "Water Cross" torture. Benton, however, is successful in his attempt to have Blackie arrested and returned to the prison, but his evil schemes are ultimately thwarted by Mary Carter, Blackie's girlfriend, who manages to alert the governor. Considered a lost film.

When Rin-Tin-Tin's master is found murdered, Rinty is accused of the crime.

Rinty is a police-dog assigned to a young Scotland Yard police-officer who covers the Limehouse district of London.

Adapted from Dorothy Yost's story, "The Untamed Heart"

Our doggy hero is abandoned in the desert while in pup-hood. Upon reaching maturity, Tin Tin has undeservedly earned the reputation as a killer canine. Thus, the human characters spend most of their time hunting down the dog in hopes of collecting a huge bounty.

A German Shepherd puppy is "adopted" by a wolf pack in the snowy and frozen Great North and raised by them as one of their own. A few years later he comes upon a fur trapper and saves the man from certain death, and begins to feel a kinship with him that is stronger than the one he has with his adopted pack.