On a warm and sunny summer's day, a mother and father take their young daughter Dollie on a riverside outing. A gypsy basket peddler happens along, and is angered when the mother refuses to buy his wares. He attacks mother and daughter but is driven off by the father. Later the gypsy sneaks back and kidnaps the girl. A rescue party is organized but the gypsy conceals the child in a 30 gallon barrel which he precariously places on the tail of the wagon. He and his gypsy-wife make their getaway by fording the river with the wagon. The barrel, with Dollie still inside, breaks free, tumbling into into the river; it starts floating toward the peril of a nearby waterfall . . .

The plot follows the novel more closely than does any other Tarzan movie. John and Alice Clayton take ship for Africa. Mutineers maroon them. After his parents die the newborn Tarzan is taken by a great Ape, Kala. Later the boy finds his father's knife and uses it to become King of Apes. Binns, the sailor who saved the Claytons and who has been held by Arab slavers for ten years, finds the young Tarzan and then heads for England to notify his kin. A scientist arrives to check out Binns' story. Tarzan, now a man, kills the native who killed Kala; when their chief is killed the black villagers appease Tarzan with gifts and prayers. The scientist's daughter Jane is carried off by a native, rescued by Tarzan (who has burnt the native village), aggressively loved by him ("Tarzan is a man, and men do not force the love of women"), and at last accepts him with open arms.

The comfortable and amiable Daniel Boone Brown, a resident of New York's water front, becomes the victim of a mad scientist's psychological experiments. For days, Dr. Ulrich Metz messes up Daniel's life, bringing on failing health, restless sleep, a nervous and irritable disposition, tardiness for work, and superstitions that cause worry and fear. Several months into the ordeal, one of Metz's minions, hired as Daniel's livery, feeds him a midnight snack of spring onions, lobster, Welsh rarebit and mince pie. We see the contents of his stomach causing pain and distress; then he has vivid and surreal nightmares. Will Metz succeed in driving Daniel to suicide?

The young Gascon D'Artagnan arrives in Paris, his heart set on joining the king's Musketeers. He is taken under the wings of three of the most respected and feared Musketeers, Porthos, Aramis, and Athos. Together they fight to save France and the honor of a lady from the machinations of the powerful Cardinal Richelieu.

A projectionist is studying to be a detective and is in love with a young lady. When he proposes her, his rival steals the chain watch of her father and incriminates him. The disappointed young projectionist returns to his job and while projecting the film, he dreams on being the detective of the story. Meanwhile, the girl finds the truth and acquits the guilty of the projectionist to her father.

Johnnie loves his train ("The General") and Annabelle Lee. When the Civil War begins he is turned down for service because he's more valuable as an engineer. Annabelle thinks it's because he's a coward. Union spies capture The General with Annabelle on board. Johnny must rescue both his loves.

Sometime in the future, the city of Metropolis is home to a Utopian society where its wealthy residents live a carefree life. One of those is Freder Fredersen. One day, he spots a beautiful woman with a group of children, she and the children who quickly disappear. Trying to follow her, he, oblivious to such, is horrified to find an underground world of workers, apparently who run the machinery which keeps the above ground Utopian world functioning. One of the few people above ground who knows about the world below is Freder's father, Joh Fredersen, who is the founder and master of Metropolis. Freder learns that the woman is Maria, who espouses the need to join the "hands" - the workers - to the "head" - those in power above - by a mediator or the "heart". Freder wants to help the plight of the workers in the want for a better life. But when Joh learns of what Maria is espousing and that Freder is joining their cause...

Two young men fall in love for the same same girl. After US enters WWi, both join the Air Corps and become ace. They remain friends, but the realtion to the girl threatens their friendship.