A preacher with a past is blackmailed into helping a murderer escape from jail.

A green ranger, accused of cowardice by his fellow lawmen, must lead his compatriots in a desperate attack on an Apache camp to rescue a young captive.

A miner (Harry Shannon) informs the Rangers that a wanted killer is in hiding---but he won't say where.

The wary Rangers allow an outlaw to lead them to a den of thieves.

When an Apache inadvertently kills an elderly chief, the Rangers set out to defend him against his Apache accusers.

A meek, hen-pecked bank teller is accused of complicity in a bank hold-up when he is the only employee in the bank when an outlaw gang robs the Bisbee bank. The teller is so taken with the attention and publicity his case is garnering that he refuses to admit that he had nothing to do with the crime. Rynning is convinced of the man's innocence and grants the gang's leader a 24-hour immunity to testify at the man's trial.

The people of Durando are caught in a power duel between their marshal and their sheriff.

A rancher recently released from a mental hospital avenges himself upon the men who committed him.

When two of his sons return from Cuban POW camps after the Spanish-American War, a rancher decides it's time to reopen a feud between his kin and a rancher who purchased most of his land when he failed to pay his real estate taxes.

With only hours left before a hanging, Rynning desperately seeks evidence that might stay the accused's execution. Meanwhile the real murderers threaten the life of the witness whose perjured testimony sent the wrong man to the gallows.

A poker game in Nogales, Arizona turns sour when one of the participants is accused of crooked dealing. After the accused shoots the accuser and makes off with all the cash, the manhunt for the perpetrator quickly leads to an arrest - the real killer's identical twin brother. The rangers desperately search for murderer before a lynch mob hangs an innocent man.

A young man joins the Arizona Rangers and dedicates himself to becoming a quick draw artist. Rynning learns that the new lawman forged his letter of introduction and is only interested in avenging himself upon the man who killed his outlaw father - Clint Travis.

When a wealthy land owner accused of murder can't bribe the circuit judge, he turns to witness intimidation to escape conviction. The judge requests Capt. Rynning to protect those called to testify.

When teacher after teach is run out of a small gold mining town, Rynning is order to investigate. His first day in the schoolhouse involves some two-fisted lessons.

A murderous escaped prisoner returns to his ranch and finds his wife has departed. He forces one of her old friends to find her while he holds the friend's wife as a hostage.

A young man, recently found not guilty of being a thief, is framed for the murder of his girlfriend by a romantic rival.

A card shark agrees to help Rynning and Travis break up a gang of sheep rustlers.

Ralph Kincaid, a wealthy rancher, catches his son, Juro, stealing money from his desk so he can pay his gambling debts and brutally beats him. The next day, the father is found murdered and the evidence seems to point to his son as the killer. During the trial, Captain Rynning discovers incontrovertible that the young man was incarcerated in another town at the time of the murder after suffering from a blackout. The ranger thinks the explanation is too pat, though, and searches for Juro's murderous accomplice.

A convict breaks out of Yuma prison and offers to help Captain Rynning round up the rest of his outlaw gang.

Rynning must make a difficult decision when he learns that the woman he rescued is wanted for murder.

Three wild brothers who were driven out of town years ago return to warn the citizens of an impending attack by a gang of outlaws, but their warning isn't believed when one of their bullets ricochet's off a church bell and kills a man.

A man whose wife was killed during an Indian raid is incensed when his brother takes an Apache woman to be his wife and encourages other Indians to settle in the town of which he is one of the founders. The man takes his racial prejudice so far as to hire a gang of gunslingers to drive the Indians from the town and his brother's wife along with them.

An outlaw's girlfriend convinces her sister, a nun, to lend her a habit so she can travel to Nogales to be with him.

Rynning runs into unexpected trouble while investigating a murder.

The territorial governor orders Rhynning to clean up prize fighting in Arizona. The Ranger captain focuses his attention on Barker, a promoter who offer $500 to anyone who can stay in the ring for four rounds with his champion. The problem is that, while suckers throw their money away betting on the challenger, there's nothing illegal about the promoter's activities.