Cowboy Larry O'Day and his sidekick Lucky Smith happen upon a distraught Barbara Hartwell, who is about to be arrested for the murder of her uncle. With Barbara behind bars, Larry is determined to find the real killer and soon finds himself in the middle of a mystery involving crazed German entomologists and a smuggling ring bringing Chinese "picture girls" across the Mexican border for sale to wealthy Chinese bachelors.

Bob Adams, ace newsreel cameraman, is told by his boss, "Get the picture---we can't screen alibis." He heads for Samari, a desert hot-bed of tribal unrest in Africa, to do just that, which includes getting footage of El Kadar, bandit and rebel leader. He gets his pictures but only after a romance with the Colonel's daughter Pamela, saving his wimpy, hacked-off brother Don from being a dupe of the gun-runners, and run-ins with spies and throat-cutting tribesman. For a finale, he saves the British Army.

Mr Banks is looking for a nanny for his two mischievous children and comes across Mary Poppins, an angelic nanny. She not only brings a change in their lives but also spreads happiness.