When the Great War breaks out, brothers Roy and Monte Rutledge, each attending Oxford University, enlist with the Royal Flying Corps.
During the Florida land boom, the Marx Brothers run a hotel, auction off some land and thwart a jewel robbery.
Police Chief Jim Fitzpatrick is after gangster Sam Belmonte. He uses his own corrupt brother Ed to watch over Daisy who was associated with Belmonte.
A tale of the World War I love affair, begun in Italy, between American ambulance driver Lt. Frederic Henry and British nurse Catherine Barkley. Eventually separated by Frederic's transfer, tremendous challenges and difficult decisions face each as the war rages on.
Rival newspaper reporters Pat Morgan and Ted Rand find themselves unraveling the mystery behind the death of a millionaire philanthropist who fell from his penthouse balcony. When it is discovered that the plunge was not an accident, the building's residents come under suspicion. Soon, the body count begins to mount as three more murders occur by strangulation.
Steve Drexel voluntarily strands himself on a deserted island on a bet. He intends to re-create civilization and carves a miniature city of 52nd Street and Park Avenue out of the jungle. Drexel is befriended by his dog, a native monkey, and a wild goat that is captured in one of his traps. He attempts to cultivate a native as his Man Friday from Robinson Crusoe, but fails as the native escape.
Joe Palooka is a naive young man whose father Pete was a champion boxer, but his lifestyle caused Joe's mother Mayme to leave him and to take young Joe to the country to raise him.
The south sea island Tonga is full of plantations and scoundrels. Ellen Bradford arrives expecting marriage to respectable and successful plantation owner only to find he is a drunk and gambler. Being the only white woman she is the desire of scoundrels and cut-throats.
A circus performer falls in love with the son of a plantation owner in antebellum New Orleans. When the young man's stepmother objects to the wedding, the couple break apart and go their separate ways for a time. Also in the mix are two circus comics who feud over the heart of another Southern belle.
Infamous burglar "The Bat" commits a daring jewelry theft despite heavy police presence. Soon after, a bank theft occurs, which may be the work of the criminal as well. Meanwhile, Cornelia Van Gorder has various people arrive at her old mansion, including her niece, Dale, a bank employee, and police detective Anderson. When guests start turning up dead, Cornelia begins to suspect that The Bat may be lurking around the estate.
Searchlight Doyle, lightweight boxing champion of the United States Navy, is shanghaied into the fleet of Sainte Cassette, an island republic, as a replacement for a wealthy slacker who must serve his country to receive a $2 million inheritance, a scheme concocted by attorney Gabriel Grabowski. All his shipmates, except Hyacinth Nitouche, assume that he is indeed the wastrel he purports to be. Doyle falls in love with Adrienne, the most beautiful of the captain's daughters, and wins her affections by treating his comrades in her teashop. Admiral O'Brien, grandfather of the man Doyle is impersonating, comes to visit, and mistaking him for a civilian, Doyle throws him overboard and to everybody's surprise is complimented on his vigilance. But his real identity is exposed by some American sailors, and he is suspected of killing young O'Brien; he is cleared of suspicion, however, and is reinstated by the admiral, thereby gaining Adrienne's love.
Sarajevo June 28, 1914. Dushan, the Serbian mayor of a Hungarian town, has come to see the parade of Archduke Ferdinand. While there he runs into Geza, an old friend in the Hungarian Army and invites him to come to his house and visit him and his new wife.
Kitty Bellairs, a flirtatious young woman of 18th Century England, cuts a swath of broken hearts and romantic conquests as she visits a resort with her sister.
Grace Livingston is leading a happy life in her small town, with her mother and father, being courted by two men, the steady but predictable Tommy Tucker and the more ambitious, flashy, and worldly Dick Loring, who seems closer to Grace in his desire for travel and adventure.
Troubles begin for the Sterlings when they buy an expensive car and friends start pressing them for rides.
When motorcycle cop Dick Fay gives a ticket to Phyllis Crawford, her father's graft-fed influence leads to his demotion to foot patrolman.
Comedian Pat West performs his vaudeville act.
The friendship between two orphans endures even though they grow up on opposite sides of the law and fall in love with the same woman.
In Ancient Polynesia, when a terrible curse incurred by Maui reaches an impetuous Chieftain's daughter's island, she answers the Ocean's call to seek out the demigod to set things right.
Anna Zaccheo is a beautiful young woman from a working class Neapolitan family. Her main concern is to find herself a suitable husband. She meets a young sailor Andrea one day and gets engaged to him. But while she is waiting for Andrea to return from the navy she gets raped by her boss. Her life suddenly takes a downward spiral.