Physicist Theodore Heldt, his young daughter Fern and his assistant Larry Gordon, on board a ship for a scientific expedition, are shipwrecked in the Pacific Ocean after a terrible storm. They find themselves safe and sound on an exotic desert island paradise. Several years pass, the professor dies and Fern and Larry, long in love and alone in the world, are united. One day, the ship they'd been waiting for appears, but the sailors are three smugglers who, instead of representing salvation, pose a threat to the young couple.

La Hurlette and Carmen are a pair of philosophical tramps who enjoy simple pleasures in the company of the cheerful Sosthène. As in the fairy tales, La Hurlette learns that he has just inherited a tidy fortune, provided he can find a job. By dint of hard work, he manages to do so, and a banquet brings together his disinherited friends. Determined to live the high life, La Hurlette and Carmen lose all their inheritance at the Cabourg casino, and end up as philosophical as ever on their favorite bench.

Stéphane Petitbourgeois is having trouble with his son-in-law Hubert, who has an extra child every year and is expecting his ninth, making thirteen people in the same apartment. However, a competition promises twenty million to the youngest grandfather of twelve grandchildren. Stéphane begins to encourage Hubert. But Pat became sterile from that day on. Finally, after two years, a child is announced. In fact, triplets were born, and after a few twists and turns, Stéphane became the youngest grandfather of twelve grandchildren.