Rawley University is about to receive a star athlete who could give it the first championship rowing team it's ever had. Unfortunately, he gets drafted into the army before he's able to join the team. Two of the team's members get the bright idea of passing off a burly truck driver as the "athlete". Complications ensue.

Ken and Happy, looking for their friend Cherokee, run into an outlaw gang led by Ritter who have been terrorizing the ranchers. Ken figures that one of the prominent citizens is the real boss and sets a trap to find him.

A doctor working with the Bureau of Pure Foods and Drugs, uses radio broadcasts to expose fraudulent patent medicines.

While breaking into a bank safe, a gangster overhears a bank employee singing and decides to put her in a Broadway revue

In Victorian England, Florence Nightingale's heroic measures slowly change the attitude towards nurses when it was considered a disreputable profession.

A girl escapes marriage and hitchhikes with a young man in whose car a jewel thief has planted his loot.

Jungle-Jim type Johnny Weissmuller helps Professor Blakely look for a missing colleague who is now playing "god" for a bunch of natives.

Two men are accused of killing their boss. They are saved from the hangman's noose when two other guys are arrested, but Holt feels as though justice is still not being served. On their own, they set about to track down the genuine killer.

Dr. Paul Carruthers is frustrated because he thinks his employers, Mary Heath and Henry Morton, have cheated him out of the company's profits. He decides to get revenge by altering bats to grow twice their normal size and training them to attack when they smell a perfume of his own making. He mixes the perfume into a lotion, which he offers as a gift to Mary and Henry. When they turn up dead, a newspaper reporter decides to investigate.