When Chester accidentally memorises and destroys the only copy of a secret Russian formula for a new and improved rocket fuel, he and Harry are thrust into international intrigue, trying to stay alive while keeping the formula out of enemy hands.

Two carefree castaways on a desert shore find an Arabian Nights city, where they compete for the luscious Princess Shalmar.

Stranded in Africa, Chuck and his pal Fearless have comic versions of jungle adventures, featuring two attractive con-women.

Scat Sweeney and Hot Lips Barton, two out of work musicians, stow away onboard a ship bound for Rio, after accidentally setting fire to the big top of a circus. They then get mixed up with a potential suicide Lucia, who first thanks them, then unexpectedly turns them over to the ship's captain. When they find out that she has been hypnotized, to go through a marriage of convenience, when the ship reaches Rio, the boys turn up at the ceremony, in order to stop the wedding, and to help catch the crooks.

Having to leave Melbourne in a hurry to avoid various marriage proposals, two song-and-dance men sign on for work as divers. This takes them to an idyllic island on the way to Bali where they vie with each other for the favours of Princess Lala. The hazardous dive produces a chest of priceless jewels which arouses the less romantic interest of some shady locals.

To ensure a full profitable season, circus manager Brad Braden engages The Great Sebastian, though this moves his girlfriend Holly from her hard-won center trapeze spot. Holly and Sebastian begin a dangerous one-upmanship duel in the ring, while he pursues her on the ground.

Two playboys try to forget previous romances in Singapore – until they meet a beautiful dancer.

While on a ship to Skagway, Alaska, Duke and Chester find a map to a secret gold mine, which had been 'stolen' by thugs. In Alaska to recover her father's map, Sal Van Hoyden falls in with Ace Larson, who secretly wants to steal the gold mine for himself. Duke, Chester, the thugs, Ace and his henchman chase each other all over the countryside—for the map.

Merle Kramer works as a stenographer for a psychiatrist. She is casually dating Karl Benson, a private eye and former cop. Merle mentions in passing that one of her boss's patients is an author with recurring dreams of murdering his wife, and she includes the fact that the wife owns valuable jewels. When the wife is found murdered in a manner identical to that of her husband's dream, the husband is naturally the prime suspect. But as the investigation of the police and insurance investigator Joe Cooper proceeds, it turns out that several people in the case, including Merle, are not what they seem.

A would-be filmmaker and actress shake up the industry with a trick dog who gets discovered by a studio bus driver in the 1920s.