An evil gang is involved in both cattle rustling and the robbing of stagecoaches. Hoppy must stop them without help from the sheriff who turns out be a major outlaw himself.
The U.S. Army needs more horses for the Spanish-American War. Hoppy must turn his Bar 20 cowhands into Rough Riders to gather up the horses, and of course bad guys try to sabotage the operation.
U.S. Marshal Hopalong Cassidy is called when a town becomes overun with bad guys. Disguised as a member of a medicine show, Hoppy discovers that the ringleader is none other than sweet li'l ol' Ma Burton.
The Jones family females decide to teach Father a lesson. He's neglecting the family business to run for mayor, so they decide to neglect their household chores.
When American newsreel cameraman stationed in Paris is sent to cover an Arab rebellion he finds a financier presumed dead but actually fomenting desert warfare.
Trixie is a female pilot looking to win a big race to advance her career. During one race, however, her plane becomes damaged, and she needs help to repair it.
"Tailspin Tommy" Tompkins and "Skeeter" Milligan are training young U. S. Army fliers for the newly-formed 'Sky Patrol,'a branch of the Army Reserves which operates along the borders and coast-lines, on the lookout for smugglers.
The second of a series of four features Monogram made based on the comic strip by Hal Forrest (Universal also used the strip characters in two serials), finds a movie company shooting a war picture at Three Points airport, with Tailspin Tommy Tompkins as a stunt pilot in the film.
After being criticized by the Citizens' League for his inability to cope with a crime wave, Police Captain Haines orders his men in the Homicide Bureau to clean up all their cases, but without violating the constitutional rights of any suspect.