Prizefighter Jimmy Nolan, facing an opportunity to get a championship fight, is knocked out when he sustains what is apparently a permanent injury to his arm. From there, Nolan's path leads downhill. He is drawn into a romance with a nightclub entertainer, then is framed on a theft charge by a jealous suitor. After his prison term, Nolan makes a spectacular comeback in a fight which proves his courage and integrity, while disproving the fallacy about the old sports adage that "they never come back."
Famous auto racing champion Joe Greer returns to his hometown to compete in a local race, discovering that his younger brother has aspirations to become a racing champion.
In 1920s Chicago, Italian immigrant and notorious thug, Antonio 'Tony' Camonte, aka Scarface, shoots his way to the top of the mobs while trying to protect his sister from the criminal life.
Jim Gray is looking for the gang leader known as the General. When Neil Denham is murdered, Jim assumes his identity. He and his pal Squint Saunders then try to join the gang. But they get captured and Jim is told he can join up only if he kills his friend.
James Parker and Harry Holt are on an expedition in Africa in search of the elephant burial grounds that will provide enough ivory to make them rich. Parker's beautiful daughter Jane arrives unexpectedly to join them. Jane is terrified when Tarzan and his ape friends abduct her, but when she returns to her father's expedition she has second thoughts about leaving Tarzan.
Heading west, Ken and Bouncer end up at the Brooks ranch where Ken is to ride Tarzan in the big race. But both the Sheriff and Edmonds are after him and he must hide both himself and the horse until race time.
When Texas Grant rides into town people think the supposedly dead Jim Rawlins has returned. After a confrontation with Utah Becker, Grant learns Jim's wife, Helen, is about to lose her ranch to Becker, so he decides to stay and pose as Rawlins in an effort to help her.
A cowhand and his sidekick come to the Texas border country looking for the man who had lured the cowhand's sister in bondage in Mexico. But the man doesn't want to be found and has hired some gunmen to see that he isn't.
Clint Belmet is a bit of a firebrand and is sentenced to at least 30 days in jail, but his partners, Bill Jackson and Jim Bridger talk a sympathetic Frenchwoman named Felice into telling the bumbling, drunken marshal that Clint had married her the previous night. Clint is released so he can accompany Felice on the wagon train heading west to California.
In the waning days of WWI, a U.S. "Mystery Ship," sets sail for the coast of Spain towing a submarine. Their mission is to find and sink a U-boat that has been especially effective in attacking Allied shipping. Posing as a harmless schooner, the mystery ship is in fact fitted with a formidable gun capable of sinking a U-boat. Stopping in the Canary Islands to refuel, the crew interacts with locals involved with Germans, and with Germans themselves, including the sister of the U-Boat commander, who is lurking offshore waiting for the coming battle.
Ted is riding for Pa Martin against Cooper in the big race. When Cooper has his men capture Ted, Peggy overhears them and sets out to free Ted in time for the race.
The south sea island Tonga is full of plantations and scoundrels. Ellen Bradford arrives expecting marriage to respectable and successful plantation owner only to find he is a drunk and gambler. Being the only white woman she is the desire of scoundrels and cut-throats.
World War I ace Dick Courtney derides the leadership of his superior officer, but he soon is promoted to squadron commander and learns harsh lessons about sending subordinates to their deaths.
Ruby is a counter girl at the San Diego Soda Shop with a habit of being a girlfriend to Sailors stopping by. Things get a little zany when she sets her eyes on Bull's Eye McCoy a gunner who refuses to settle down.
Made during the early days of sound cinema, this tense submarine adventure is an intriguing example of a hybrid silent-talkie. A disgraced English sub commander changes his name to Burke and joins the American Navy. When the U.S. submarine on which he is serving as a torpedo launcher begins to sink, Burke must make the ultimate sacrifice to save as many crew men as possible..