Bandits lead by Matt the Mute enter a bar and kill multiple people. Randy Bowers comes to town and is framed by Matt the Mute, who is working with the sheriff (who doesn't know Matt is really a criminal). Randy escapes with the help of the niece of the dead owner of the bar. Bowers ends up running from the sheriff, and ends up in the cave in which the bandits have their hide-out…
The Marshal sends John Weston to a rodeo to see if he can find out who is killing the rodeo riders who are about to win the prize money. Barton has organized the rodeo and plans to leave with all the prize money put up by the townspeople. When it appears that Weston will beat Barton's rider, he has his men prepare the same fate for him that befell the other riders.
When Sheriff Jake sees a man at the safe and then finds the payroll gone, he trails him. Just as he is about to arrest him, the man saves his life. Still suspicious, he joins up with the man and later they learn that Melgrove, the towns leading citizen, is trying to take over the area's ranches by having his gang stop all incoming supply wagons. With the ranchers about to sell to Melgrove, the two newcomers say they will bring in provisions.
James Kincaid controls the local water supply and plans to do away with the other ranchers. Government agent Sandy Saunders arrives undercover to investigate Kincaid's land swindle scheme, and win the heart of one of his victims, Fay Denton.
Mary Brooks' father, who has been studying ancient tribes, falls into the hands of "the people of Zar, god of the Emerald Fingers." Tarzan helps Mary locate her father, rescues everyone from the High Priest of Zar, and takes Mary to his cave.
Jimmy, a young boy, idolizes famed train engineer Casey Jones and is devastated when his hero is killed in a train wreck. The boy grows up to be a railroad engineer, too, but one day the train he is piloting loses its brakes and wrecks. Jimmy tries to fix it but has to jump off at the last minute. Unfortunately, stories begin to circulate that he turned coward and jumped off the train first, letting it be destroyed rather than try to save it. He sets out to clear his name.
When Mark 'High Gear' Sherrod (Murray) looses his nerve, the race car driver takes a job driving a taxi, but when he befriends a cute reporter and the young handicapped son of a deceased driver, he attempts to return to the track.
Clint Belmet (Gary Cooper) is a bit of a firebrand and is sentenced to at least 30 days in jail, but his partners, Bill Jackson (Ernest Torrence) and Jim Bridger (Tully Marshall) talk a sympathetic Frenchwoman named Felice (Lili Damita) 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.
During America’s Civil War, Union spies steal engineer Johnny Gray's beloved locomotive, 'The General'—with Johnnie's lady love aboard an attached boxcar—and he single-handedly must do all in his power to both get The General back and to rescue Annabelle.
A nobleman vows to avenge the death of his father by the hands of pirates. To this end, he infiltrates the pirate band; Acting in character, he single-handedly captures a merchant vessel, but things are complicated when he finds that there is a beautiful young woman of royal blood aboard.
The wealthy and impulsive Rollo Treadway decides to propose to his beautiful socialite neighbor, Betsy O'Brien. Although Betsy turns Rollo down, he still opts to go on the cruise that he intended as their honeymoon. When circumstances find both Rollo and Betsy on the wrong ship, they end up having adventures on the high seas.