The Hell Diggers

Marion Shipley is happily devoted to her husband, John, until Mrs. Willy Strong, a society "vampire," succeeds in capturing his affections. A jewelry salesman informs Marion of the affair, after John and Mrs. Strong enter his store together. Marion follows her husband to a restaurant, where she witnesses Mrs. Strong give John the key to her apartment. Gaining entrance to her rival's home, Marion transforms herself with the vamp's clothes and makeup, rendering herself unrecognizable to John in the dim light. Marion is in John's arms when Mrs. Strong arrives, and he denounces her for his wife.

In managing the shipyard inherited from her father, Derith Keogh has considerable labor problems and accedes to the unreasonable demands of John Trevelyan, an anarchist labor agitator. Derith's brother John is off in pursuit of an adventuress, and Angus Campbell, her superintendent, resigns in exasperation. Angus returns, however, to help Derith persuade Trevelyan to settle a strike, which Trevelyan accomplishes in spite of being shot by one of his own men.

Young Jack Wright offers his hand in marriage to the winner of a lottery, but after committing to the winner falls in love with another woman.

Because he believes that romance is dead, the city editor wants to can the "advice to the lovelorn" column. Rosalie Beckwith, the column's author, naturally disagrees with him. The editor suggests that she prove him wrong by seeing if she can find romance within a 40-mile radius of the city.

After having been stood up at his own wedding, a young man vows that he will have nothing more to ever do with women. However, he soon discovers that he has been left a fortune--on condition that he gets married. Deciding that being rich and married would be preferable to being broke and single, he goes in search of a wife, but things don't turn out quite the way he planned.

Railroad magnate Gordon Rogers agrees to allow his daughter, Helen, to marry wealthy idler Billy Deering, Jr., but only if the latter can hold the same job for one month. Billy is hired for an array of jobs, including office clerk and xylophone player, but always quits just before being fired. He then finds work in a restaurant where he is required to dress as a knight in armor and pose as a statue. On one occasion, Gordon, Helen, and Billy's romantic rival, Tom, enter the restaurant, and Billy is nearly fired when Helen recognizes him. Meanwhile, Gordon plans to merge one of his railroads with a company that is in a dispute with Tom's uncle, an unprincipled financier. Acting on the promise of a generous cash reward, Tom is determined to steal documents relating to the merger.

John Livingston is a rich mama's-boy, who owns a blooded dog named Paul. Paul meets Maggie Mutt, and Paul, being a pedigree canine and somewhat of a cad, lures trusting Maggie to the barn to have his way. He then departs for his palatial doghouse at the Livingston estate. Meanwhile Maggie is broken-hearted and also finds that she is in a "family way", and gives birth to a pup she names Hank. Maggie tells Hank to find his "human ", and departs the scene. Hank goes to the park, meets a "human" named Mary Kelly, who is a homeless waif and sweetheart of poverty, and the two adopt each other. Later on in the park Paul comes strolling along with his 'human', John. A child falls into the lake and Paul and Hank team up to save her.

The Butterworth family attorney Gaspar Le Sage, and a suitor for the hand of Eleanor Butterworth, persuades a beautiful adventuress, Annabelle Wu, to help him steal the official plans for the coastal defense of California from Eleanor's brother, Lieutenant Butterworth.

Minnie, the homeliest girl in town, is devoted to her father, a discouraged inventor who has been working on a wireless device. Subject to the sneers of her neighbors, Minnie "invents" a lover and sends herself letters and flowers. Her stepsister suspects the truth and threatens to expose her. Desperate, she claims an unidentified body at the morgue and tells a reporter that this is her lover, unaware that the body is that of a Chinese man. The absent-minded reporter sees her heart and forgets about the big story. After further disappointments in the invention, Minnie's stepmother decides to leave her father. Her father then has a success and becomes rich. At a celebration, the stepsister and townspeople are surprised when a new couple appear, which turn out to be the former reporter and his lovely wife Minnie.

Jim Glover is an engineer in charge of constructing a railroad to the sea. He gives the company president Gage a tour of the area of land coveted for its use as a short cut that can save hours on the journey. After the officials visit a recently constructed dam, the train makes a stop in a dull town, and Gage's daughter Laura throws a charity bazaar to combat the boredom. Jim puts together a mock-holdup that saves the event from financial ruin, endearing Laura to him. Later, an accident traps three workers in a cave, and Jim is called away to rescue the victims.

A doctor's adopted son turns out to be an ungrateful whelp. He beds the doctor's maid, then his secretary, and finally targets the doctor's wife, his own stepmother as his next conquest....

Egotistical race-car driver Dusty Rhoades learns that humility pays off even better than acclaim.

During World War I, an American soldier is captured and taken prisoner by the Germans. However, instead of being placed in a prisoner-of-war camp, he is assigned to the small farm of a young woman and her son to help raise crops to help feed the German army and people.

A bored rich housewife wants to go on the stage, but her husband won't let her. When she meets a despairing actress who looks exactly like her, she suggests they swap places for a little while, giving the actress a break while the rich husband is out of town. But the rich husband comes back early, causing havoc for the actress, plus the rich housewife is finding herself attracted to the actress's boyfriend.

High school students led by the Girl and Boy turn from Christianity toward secret atheistic meetings. When a girl is accidentally killed by a stairway collapse, the Girl and Boy go to reform school where they are treated brutally.

Phyllis Latimer goes to Fiji to rejoin her husband of three years and finds him in a state of drunken degeneracy, incapable of reform. Fleeing his advances, she escapes to a nearby island; and there she impersonates Pauline Leonard, ward of John Webster. When Latimer incites a native uprising against Webster, who hires Hindu laborers, he finds Phyllis on the island, drags her home with him, and in a frenzy gives her to the natives for a human sacrifice. Webster and the government police arrive in time to save Phyllis, and Latimer is killed in the riot. Phyllis and Webster reveal their mutual love.