⁣THE SPANISH GRANT: When the Cartwrights find out that some of the Ponderosa may be forfeited under the Spanish Land Grant, they decide to take legal action in order to stop it. Adam, however, takes another plan of action, which involves getting to know the beautiful heiress who is claiming the land under the grant.

⁣Criminals are being smuggled back into the United States hidden in what appear to be oil barrels. After taking their money, the criminals' barrels are tossed down a hill into the water behind a dam. Roy discovers the operation and brings the bad guys to justice.

⁣Marshal Bob Marlow arrives in Apache City posing as a dude. The six Tolliver brothers are running wild and when Bob fights with two of them they accidentally shoot each other. Then a third brother goes after him and is accidentally shot when they fight. When Bob's identity is revealed, the other three and the rest of the gang rob the bank and flee. No longer a dude, Bob organizes a posse to go after them.

⁣ Lambert has the stagecoach wrecked killing the Commissioner so his phony replacement can alter Coonskin's land survey. When Red Ryder exposes the survey hoax, Lambert has his stooge Sheriff put Red in jail.

⁣After he loses his money and horse in a poker game, Yak learns he was cheated. But then he learns that the men that cheated him are wanted and have a price on their heads. This gives him a chance to get his money back and more, so he sets out after them.

⁣School's over for the summer and Joey doesn't have a care in the world. He convinces Pete to take him and Frankie (Mike Taylor) on a camping trip to an area far from the ranch and his plan sounds like a good one, until Dr. Walton discovers that the dog that bit Joey earlier in the week was rabid.

⁣When a bank president is murdered, the townspeople accuse the man's future son-in-law of the crime and a lynching party is formed. Cisco and Pancho must find out who the real killers are before the mob hangs the innocent man.

⁣A district attorney and a reporter try to find the killer of a D.A. who uncovered a massive stock fraud.

⁣Mr. Cheever warns Mr. Mooney that his job is in jeopardy unless he attracts new business to their branch of the bank. So when Lucy hears that a recording star, country hick Homer Higgins (Ernie Ford), is about to become a California resident, she sets off to the hotel to coax him into setting up an account with their bank. To impress Mr. Higgins and his family, Lucy and Mr. Mooney set up a hoe-down in the bank after it closes that evening...and Lucy decides to dress down to pose as Mrs. Mooney.

⁣Cisco and Pancho work with a sheriff and beautiful undercover female agent for the cattlemen's association, to break up a cattle rustling operation.

⁣Scully has forced Joe Collins who works on the Garcia ranch to give him information so his men can steal the family jewels. But the Rough Riders are on the job. Buck poses as a wanted outlaw to get into the gang, Tim as a cattle buyer, and Sandy is collecting information as the saloon janitor. As usual they pretend not to know each other.

⁣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.

⁣ A Communist spy ring in Japan is hard at work trying to sabotage the American war effort during the Korean War, using kidnapping, murder and a disturbed former kamikaze pilot. A U.S. secret agent, posing as a reporter, is dispatched to Tokyo to put a stop to these nefarious activities. The first American film shot entirely on location in Japan.

⁣An elderly prospector finally strikes gold, but before he can file a claim, he is killed by a pair of drifters who stampede a wild horse herd over the man's body to hide their crime. The sheriff believes that Champion is a wild killer and tries to have him shot!

⁣Cisco and Pancho come across Bob Drake being chased by two outlaws. After helping him, Cisco hears his story of being framed for a gold robbery. Cisco believes Bob and decides to investigate.

⁣ A ranch owner gives the Cheyenne Kid $1000 and sends him off to buy cattle. At the same time he fires a ranch hand and that hand rides ahead and alerts Jeff Baker about the $1000. Bakers' henchman are too late to get the Kid but they kill the rancher paid by the Kid. The Sheriff then arrests the Kid claiming he murdered the rancher to get the money back and that Baker said he then lost it at his gambling table.

⁣Under a false name, famed outlaw Pecos Bill gets a job at the Bellounds ranch along with his sidekick Frosty. He bides his time until he can expose the men who, years earlier, killed his partner and framed him for the crime, then stole his ranch. Also known as The Mysterious Rider.

⁣ Andy Hardy goes to college after returning from World War II. He is in love with Kay Wilson this time.

⁣Ricky and Sandy persuade a railroad line to bypass the range where Champion and his remuda live, but removing prospectors who try to claim the same valley after stumbling onto what they think is gold-bearing rock proves a tougher nut to crack.

⁣Pat and Stoney investigate the mysterious closing of a government silver mine and the ghost town left in its wake. They meet several suspicious characters in the empty town, one of whom holds the answers they seek.