The city's District Attorney is murdered, and a newspaper reporter investigates. He starts finding out that everything wasn't quite as cut and dried as it appeared to be.

A man accused of planning a prison break turns the tables on escaped cons by leading the group into the desert.

In the 18th entry of Monogram's 24 "Range Buster" films, the bank of Gila Springs is robbed by Ace Alton and his gang, and Sheriff Frank Hammond, son of Marshal Jim Hammond, is killed. The Marshal sends for the Range Busters, Dusty King, Davy Sharpe and Alibi Terhune, to come and restore order to the town. Ed Cole, head of the local vigilantes, and secretly the head of the outlaws, promptly orders the trio out of town. They visit an old friend, Rancher Mike Rand and his daughter Mary. Mary's brother Jeff has unwittingly become a gang member, and carries out Cole's orders by taking a shot at Davy, but the latter makes him a prisoner during a subsequent fight in the town café. Jeff confesses to Cole's involvement, and the Range Busters, with the help of town banker Harrison, set a trap for Cole and his outlaw vigilantes.

A corrupt official at San Quentin tries to frame an innocent guard for several murders within the prison.

Drummond's girlfriend is kidnapped by his enemies and he along with his friend Nielsen, an inspector from Scotland Yard, follow the trail and try to rescue her from the kidnappers.

A Capone-like racketeer named Anderson, who after being chased out of one town by the authorities immediately sets up shop in another. Unable to get any tangible evidence against Anderson, DA Wayne orders his assistant Carter to dig up some dirt on the gangster boss. To do this, Carter pretends to turned crooked, joining Anderson's gang in order to accumulate evidence. Alas, Carter's girl friend Patricia knows nothing of her boyfriend's subterfuge, and she suspects the worst.

Cowboy Larry O'Day and his sidekick Lucky Smith happen upon a distraught Barbara Hartwell, who is about to be arrested for the murder of her uncle. With Barbara behind bars, Larry is determined to find the real killer and soon finds himself in the middle of a mystery involving crazed German entomologists and a smuggling ring bringing Chinese "picture girls" across the Mexican border for sale to wealthy Chinese bachelors.

A cop hesitates in using his gun to stop a robbery, & the robbers get away. He is forced to quit the police force, and he turns to a life of crime.

Detective Tracy rescues Tess Trueheart and Junior from a killer called Splitface.

A group of thugs tries to steal the cursed title gem from a jeweler who has been hired to cut it into small, saleable pieces.

As the sheriff of a small western town, Autry sings his way into a relationship with Eleanor, a singer from a Chicago nightclub who earlier witnessed a murder.

Postal inspectors track down money stolen from a railroad car.

A female reporter goes undercover to investigate the series of mysterious disappearances of young women, who were all linked to a local drama school.

Investigators crack down on a gang of nightclub con artists that has been victimizing wealthy bachelors.

Spectacular stunt work by Richard Talmadge, circus acrobat and stunt man for Douglas Fairbanks, Sr., highlights this expose of a big city criminal mastermind.

Two rival newspapers are engaged in a circulation battle, complicated by the fact that a vicious gangster inserts himself into the middle of it. Also complicating matters is that one newspaper's editor and circulation director are competing for the affections of a pretty blonde reporter.

A gang of criminals, which includes a piano player and an imposing former convict known as 'Gruesome', has found out about a scientist's secret formula for a gas that temporarily paralyzes anyone who breathes it. When Gruesome accidentally inhales some of the gas and passes out, the police think he is dead and take him to the morgue, where he later revives and escapes. This puzzling incident attracts the interest of Dick Tracy, and when the criminals later use the gas to rob a bank, Tracy realizes that he must devote his entire attention to stopping them.

Jim Cole, heir to a mining operation, takes over the mine, which is suffering from unexplained low production, and is facing a strike by the miners. Jim will soon loose the mine if production doesn't increase and the sabotage continues. Mary Norsen, office-secretary, accidentally learns of a plot by Fred Johnson to wreck the mine and force Cole to sell his coal-mine. She and her brother, Joe, join Cole in his fight to stop Johnson.

Young David Morton, heir to millions, has been over-zealously restrained from normal youthful activities by his two old-maid Aunts, Harriet and Agatha. In an outburst from his confinement, he meets lovely Gertrude, and promises to race her injured-brothers car in the Big Race. Between the gangsters trying to win the race by disabling him, and his bungling bodyguards trying to bring him home safely, David has a battle to win the race and Gertrude's heart.

Lloyd Wilson, trusted employee of an investment firm, is suspected of theft when $20,000 in security bonds is stolen from his office. Tarzan, the Famous Police Dog, has an intuitive dislike of an apparently respectable citizen, and this leads Wilson and the police to the gang headquarters. Tarzan wins a public citation for his leading part in breaking the case against a desperate gang of criminals.

The constant battling over the same woman gets two detectives demoted to what's considered the toughest job in the Police Department--the Riot Squad.

A meddlesome reporter sporting a young bride takes on a gang of modern day cattle rustlers. Donald "Red" Barry plays Dan Reilly, a newspaper reporter just returned to LA with his wife, photographer Margie (Marjorie Steele). Margie insists on taking pictures of everywhere they go, and so as she's walking into a butcher shop she poses for Dan - while at the same time three thugs make their way quickly out after beating up the proprietors. Soon Margie and Dan are involved in investigating an illegal meat operation that rustles cattle and forces butchers to buy it - or else. Dan gets beaten up a couple of times, but is undaunted in pursuing the great story - and hey, he's only got 64 minutes to do so, he'd best get cracking!

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."

A sailor falls for a gangster's moll, leaves his wife and finds himself caught up in a life of crime.

A gang of racketeers, with the aid of a high-ranking city official has control of a big-city, and the police plant an undercover cop to gather evidence against the hoodlums - except the police keep telling the wrong person what they are up to.

Young girls are cheated into rigged gambling games and then forced into prostitution to pay off their debts.

A feud between two gangs in Chinatown breaks out into a tong war.

Rin-Tin-Tin brings the killer of his mistress to justice.

A gangster who operates a sleazy dance hall uses a sadistic bodyguard to keep his girls afraid and his customers in line.