Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth. Luckily, heroic young Flash Gordon is on hand to lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.

Imprisoned for a murder he did not commit, John Brant escapes and ends up out west where, after giving the local lawmen the slip, he joins up with an outlaw gang. Brant finds out that 'Jones', one of the outlaws he has become friends with, committed the murder that Brant was sent up for, but has no knowledge that anyone was ever put in jail for his crime. Willing to forgive and forget, Brant doesn't realize that 'Jones' has not only fallen for the same pretty shopgirl Brant has, but begins to suspect that Brant is not truly an outlaw.

Popular mailcoach driver Uncle Willie is in fact in league with the town's crooked banker. They plan to have the bank robbed after emptying it, and when Willie's choice for this doesn't show in time, he gets some local boys to do it. When his man does turn up he decides to stick around, as he is pals with the sheriff and also takes a shine to Willie's daughter Allison. This gives the bad men several new problems.

Billy "The Kid" Bonney is a hot-headed gunslinger who postpones his life of crime when he is befriended and hired by peaceful cattle rancher Eric Keating. When Keating is killed by a rival, Billy seeks revenge, even if it means opposing his old friend, Marshal Jim Sherwood.

Cartwright's racket is to sell a ranch and then have Mason and his men drive the ranchers away so he can resell it. If they want their money back he gives it to them and then has them killed. Jack arrives and learns that Mason and his men are the culprits but that they have a boss. He suspects Cartwright and sets trap to expose him.

Boston pharmacist Tom Craig comes to Sacramento, where he runs afoul of local political boss Britt Dawson, who exacts protection payment from the citizenry. Dawson frames Craig with poisoned medicine, but Craig redeems himself during a Gold Rush epidemic.

His Arizona hometown of Torpedo invites Gene back to be the honorary sheriff of the Frontier Days Celebration.

From Death Valley in the Mojave Desert to Mount Whittier, the outlaw gangs are wreaking havoc on the gold and money shipments from the mines and ranches. Wells Fargo organizes an express service that will insure the shipments and ensure a guaranteed delivery. Granger Hume is hired to help Wells-Fargo deliver on their promise.

The Three Mesquiteers convince a group of settlers to exchange their present property for some which, unbeknownst to our goodguys, is going to be worthless. They are captured before they can warn the ranchers.

Jerry Johnson inherits a 50,000 acre ranch. Lucky Miller wants to take over the ranch. Roy is trying to get a railroad spur right of way. Lucky has a woman come west to marry Jerry to get control of the ranch. After the wedding, Lucky has the owner killed. Roy’s gun is substituted for the murder weapon, so Roy is put in jail.

The tale of Clint Farrell, an aspiring lawyer who must use both his wits and his brawn to save his town from being taken over by a villainous railroad financier.

A timid bank clerk has to toughen up during the search for a gang of bank robbers.

Three men escape from prison, go back to their hometown to try to find out who framed them.

John Drury saves Duke, a wild horse accused of murder, and trains him. When he discovers that the real murderer, a bad guy known as The Hawk, is the town's leading citizen, Drury arrested on a fraudulent charge.

Homesteaders are moving into the valley settled many years ago by rancher Craig Dolan. He wants to keep them out by legal means but his nephew Bart brings in outlaws to drive them out. The Lone Ranger is on hand to help the homesteaders battle Bart's men as he overcomes traps, ambushes, burning buildings and other obstacles in his attempt to bring peace to the valley.

Edited down version of Sagebrush Trail. Imprisoned for a murder he did not commit, John Brant escapes and ends up out west where, after giving the local lawmen the slip, he joins up with an outlaw gang. Brant finds out that ‘Jones’, one of the outlaws he has become friends with, committed the murder that Brant was sent up for, but has no knowledge that anyone was ever put in jail for his crime. Willing to forgive and forget, Brant doesn’t realize that ‘Jones’ has not only fallen for the same pretty shopgirl Brant has, but begins to suspect that Brant is not truly an outlaw.

After Sheriff Ken puts money in the safe, his brother Clem gives Rawhide the combination. With the money gone the disgruntled townsmen make Boots Sheriff and lock up Ken. Clem, now a prisoner of Rawhide, has a change of heart and sends Ken a message with the outlaw's location. Ken escapes by impersonating the saloon entertainer and rides for the hangout.

Tom Cameron and Fuzzy Q. Jones come to the aid of their old friend Smoky, who is having trouble with power hungry cattle rancher Huxley.

The Saturday matinee crowd got two cowboy stars for the price of one in this lavishly budgeted western serial starring former singing cowboy Dick Foran and Buck Jones. The latter contributed deadpan humor to the proceedings, making Jones perhaps the highest paid B-western comedy relief in history. The two heroes defend the Death Valley borax miners from an outlaw gang headed by Wolf Reade. An extraordinarily strong cast -- for a serial, at least -- supported the stars, headed by Charles Bickford as Reade, Leo Carillo, Lon Chaney, Jr., and silent screen star Monte Blue. Leading lady Jeanne Kelly later changed her name to Jean Brooks and starred in the atmospheric RKO thriller The Seventh Victim (1943). Universal claimed to have spent $1 million on this serial and made sure to get their money's worth by endlessly recycling the action footage in serials and B-westerns for years to come.

John Mason returns to the Sally Ann mine to claim his half share. Janet Cater also returns although her father lost his half share to Joe Ryan. Ryan and his gang are also there to get the gold. A mysterious Phantom is also present. Mason's plan to expose Ryan as an outlaw and to force him to turn his share to Janet works. But when distracted by the Phantom, John is made a prisoner by the gang.