Bandleader Kay Kyser takes his troupe of nutty musicians, goofball comics and pretty girl singers on a tour around the world to entertain the troops during World War II.

Young Brad Craig enters the military school with a chip on his shoulder which upperclassmen quickly knock off. Once adjusted, Craig falls in love with a professor's beautiful daughter, only to find she is in love with his roommate.

Japanese spies attempt to subvert America's war effort; G-Men attempt to thwart their plot.

Rick Leland makes no secret of the fact he has no loyalty to his home country after he is court-marshaled out of the army and boards a Japanese ship for the Orient in late 1941. But has Leland really been booted out, or is there some other motive for his getting close to fellow passenger Doctor Lorenz? Any motive for getting close to attractive traveller Alberta Marlow would however seem pretty obvious.

Someone has absconded with $4,000,000 worth of diamonds, and that someone may very well be a passenger on the Bombay Clipper.

Hoppy is leading a scientific expedition and the Chinese who have a hidden settlement nearby are trying to stop them. Saulters and his outlaw gang are also in the area looking for a gold mine. When Saulters men attack, the gold mine is found. Hoppy agrees to file for the Chinese and heads after Saulters in the chase to the land office.

After a woman shoots a man to death, a damning letter she wrote raises suspicions.

Jimmy and Mary get a group of kids together to play in a school orchestra. A huge contest between schools is coming up and they have a hard time raising money to go to Chicago for the contest.

Gangster Charlie McCormick despairs as his young brother Bobby lays near death and vows to break the quarantine of the ocean liner Pacific Queen in order to retrieve the iron lung Bobby needs. Meanwhile, newspaper editor Lonigan searches for reporter Slim Torrence, because Slim is friends with Tom Niles, the customs officer on the verge of cracking a whiskey smuggling case. Lonigan is about to send another reporter to cover the story when Della Parrish, the publisher's daughter, assures him that she can locate Slim. With the help of Slim's young photographer, Willie Sing, Della finds Slim in a waterfront dive, and Willie and Slim sneak aboard the Pacific Queen to find Niles. Niles hints that McCormick is the head of the smuggling ring and promises Slim an exclusive when he breaks the story the next day.

In this B potboiler, a college professor finds himself suspected of a murder on his school's campus.