Harry O. Hoyt

The first film adaptation of Sir Arthur Conan Doyle's classic novel about a land where prehistoric creatures still roam.

A small-town, jazz-mad girl, Peggy Marston (Dorothy Revier), becomes involved with a pair of society thieves, Maurice Dumond (Armand Kalis) and Maxine (Mildred Harris), and finds herself falsely accused of possession of stolen jewels.

Alita, a child who has been left in the care of Mr. and Mrs. Putnam in a desolate swamp country, reaches the age when she is to be prepared for the world, and the Putnams send word to Judge Gates, her guardian, to come for her. Her life has been spent in the swamps with a half-witted boy, "Weird Willie," and many animals and birds of that country, as her only playmates. Judge Gates receives the letter at his bachelor apartment, which he shares with a younger friend and companion, Bob Stange. Through the accidental dropping of a marriage license the Judge discovers that Bob is about to become a benedict, despite the fact that they had a compact never to marry, on the theory that all women are deceitful.

Clean-living pugilist Jim Fortune assists Angelica Hart when her husband Duncan assaults her in a Bowery café. Soon after, Jim fights a bout with Hart, an amateur society boxer, during a dinner party. Enraged by the sight of whip marks on Angelica's neck, Jim knocks Hart out soundly. In revenge, that night Hart attacks Angelica.

Burton is after Clark's ranch. He gets the banker to refuse to renew Clark's note and then sends his men to rustle his cattle. Hoppy is Clark's new foreman and is on to Burton's scheme. But just as he learns of the rustling and is about to go after the gang, the Sheriff arrives and arrests him for hiding Johnny who has been accused of robbery.

Four survivors of a ship wreck are stranded on a deserted island, including a woman and the man she believes is responsible for the murder which her brother is in prison for.

A promising young prizefighter sees his career start to go down the drain after he gets married and allows his wife's father and no-good brother to move in with them.

Heavyweight boxing champion Jack Dempsey stars in this 15 chapter action serial, of which portions of reels 1, 2, and 4 survive. In the serial he plays the star fullback of his college's football team who gets drawn into an adventure when he stops to rescue a young woman from some thugs on a country road. It includes a gag featuring an exploding football. The rest of the cast includes Lon Chaney, Edgar Kennedy, Bull Montana, Josie Sedgwick and Herschel Mayall.

When Mona Frentiss dies, she has her confidante "Doctor Bobs" watch over her family, especially her youngest daughter Patricia. The family has been raised in a most unconventional manner, with Mona having a much younger lover and the father Ralph keeping his own lover on the side. As Patricia grows older, she attracts the attention of her mother's former lover, the much older (than Patricia, who in the book is in her early to mid teens) Carey Scott. Patricia tempts fate with her wild ways, nearly loses her virtue to a musician aboard an ocean-going boat, and is saved in time by Carey. Realizing that he is the man for her, she settles down into an experimental marriage.

Margaret has given up her stage career to marry inventor Jerry Benson. Jerry fails to impress oil executive William Graves with his idea, but Margaret has better luck when she catches Graves' attention and she both makes the sale and becomes the object of Graves' obsession. Profits from the invention make the Bensons wealthy; however Graves schemes to steal Margaret from Jerry by swindling them out of their money and getting Broadway floozy Gloria to break up their marriage.

A feud between rival newspapermen Kruger (Bromberg) and McDonald (Guilfoyle) goes deadly when blackmailing McDonald ends up murdered and his corpse planted in the trunk of Kruger's car. Good guy Kruger attempts to hide McDonald's body, with the help of chauffeur Hogan (Jenks), to keep from being charged with murder. However, zany scenarios occur as the body just won't stay hidden, and keeps on popping up in multiple places where Kruger is located, leading to him hiding the body again and again while Kruger tries to find the real killer.

Pauline Cheraud risks her reputation to expose the man who killed her father.

Sylvia, a model in the shop of a fashionable dressmaker, is introduced to the Hicks family, which recently has acquired a fortune through iron ore deposits discovered on their farm. Octavia Hicks sees in the cultured but unpretentious Sylvia a good match for her son Henry and invites the young woman to visit the Hicks home. Two other visitors, Frank Hayward and his accomplice Annie, are masquerading as a count and a princess in order to con the country-born millionaires out of their money. The two are introduced to Sylvia, who soon discovers their plots and exposes them. A mysterious foreign gentleman appears and announces that the fashion model is actually the Princess Sylvia of Karalyn, but she renounces her title to marry Henry.

When the body of Col. S.F. Hargraves was found in a room in the rear of Cradelbaughs, a gambling house, with a bullet in his heart, the police found "Big Jim" Pemmican, the manager of the place, coolly pacing the floor when they arrived.

Madame Adele, once a great star of the Paris theatre, has fallen upon hard times. But she allows a young American performer, Marie Duval, to perform as the Madame Adele of old, and both become the darlings of Paris, one again and the other newly-crowned.

Tom Whitney, well connected but a social derelict because of his weakness for drink, is released from the draft because of an old football Injury, but a policeman persuades him that he can still do his bit in the shipyards. He takes a job in the yard owned by the man to whose daughter he was engaged in happier times. Three German propagandists seek to foment a strike to delay the work, and largely through Tom's efforts the plan goes amiss and the strike is called off. Rehabilitated by work, the launching of The Liberty is a forecast of his own rebirth.

John Kavanagh, a Maine lumberman, clashes with Stephen Marthorn, owner of a spruce-logging company, when Marthorn orders his men to make their drive before Kavanagh can get his logs down the river.

Hoppy clears Lucky on a charge of bank robbery and foils the plot of a crooked lawyer to rustle a herd of pedigree cattle and take over the valley.

A wealthy man's wife becomes bored with him, so his friend decides to trick her into an elopement into the unforgiving wilderness to make her appreciate her life anew.

Two Boy Scouts win an around-the-world trip with a crack aviator, and find themselves crash-landed in the South American jungles after the ace forgets to refuel in Ecuador.

Bob Carter, a member of the Foreign Legion, is glad to see his brother, Don, for the first time in ten years but is sorry that Don has joined the Legion. Bob, Don and Bob's buddies, Muggsy and Bilgey, go to a café and there Don falls for Nina, a singer in love with Bob. Bob doesn't know this and thinks she is Garccia's girl, and warns Don to have nothing to do with her. Don disregards the warning and Garcia discovers Nina and Don together and provokes Don into hitting him. Don is arrested and thrown into the company brig. Nina, with the aid of an Arabian sheik, Ul Ahmed, helps Don escape. Bob, Muggsy and Bilgey follow but are captured and taken to Ul Hamid's headquarters. The sheik tortures Don to force Bob to work some captured machine guns for him. Ah Hamid and his tribe attack the fort, but Bob manages to turn the machine guns against his captors, and the fort is saved.

Mystery and adventure, surrounding a stolen rubber harvest.

The cattle on the Langton Ranch are mysteriously dying and cowhands are disappearing or being shot. Two Langton riders bring a wounded rider they found wounded and hung up in a barbed-wire fence to Sally Langton and report that her father is missing. A lone rider, Jess Ryder, tops a rise and sees a band of men working on some calves in a secluded corral, and he frowns as he sees what Bat Murchinson is doing.

As a woman walks the "last mile" to her execution she remembers back to the incidents that got her framed for murder.