Merlin Jones, a precocious and intelligent high-school boy, experiments with hypnosis and creates a mind-reading machine. However, his experiments land him in deep trouble with the law.

Peter, an orphaned boy, is adopted by Gramp Frye after his parents are killed in Europe while doing war relief work. The boy feels safe with his new caretaker, but when he is taunted for being an orphan, he gets demoralized. The next day Peter wakes up with green hair. Embarrassed and further ridiculed, Peter seeks solace in a nearby forest. To his surprise, he finds other orphans in the woods, who encourage him to spread news of the injustices of war.

College whiz-kid Merlin Jones concocts a method for teaching advanced information to a chimpanzee, then creates a flying machine of his own design, ultimately raising havoc on the campus.

This film is based on the novel, Mrs. Mike, which is based on the real life woman, Kathy O'Fallon Flannigan. A Boston teenager is sent to live with her uncle in frontier Canada because of her fragile health. She eventually falls in love with one of the few young, white males in the region. They marry and depart for the northern wilderness to set up house and home. The rest of the movie is about her struggles and joys of living and travelling in this rugged country.

Danny, a greenhorn from New York comes to the Mexican border in search for his older brother whom he has always looked up to. A Texas Ranger charged with bringing in, El Tigre and his gang of bandits, takes Danny under his wing.

Jack Early is a photographer who will stop at nothing to climb his way to the very top of the success ladder. On the strength of his sheer tenacity, he gets a job with a major newspaper, and it's not long before he's made a name for himself by charming a notorious crime boss, Nick Palmer, into allowing himself to be photographed. Palmer takes him under his wing, but Early decides to bite the hand that feeds him and sets Palmer and another crime boss, Colton, against one another.