Irma Hodge's wealthy step-father, Sumner Hodge, is withholding her inheritance because he dislikes her folksinger boyfriend, Con Bolton. When someone supposedly takes a shot at Sumner, he suggest to the police that Con is to blame. Then another attempt is made on Sumner's life which proves successful. His car goes over a cliff with him behind the wheel and an investigation reveals that the brake line had been severed. Witnesses then claim Con was fooling around with the brakes minutes before the crash and he's charged with murder.
Jed becomes head of a corporation, which Drysdale organized for him as a tax write-off. The Clampetts decide they want to help out at their corporation, and get the penthouse suite in the bank building. They get all dressed up, Elly in one of her ball gowns, and go to the bank.
While on a camping trip with Opie and his friends, Barney brags to Gomer about his outdoor skills and promptly gets them lost in the woods. When Andy finally does find them, he and Gomer hatch a plan to save Barney the embarrassment and prove to everyone what a mountain man he really is.
Laura Dayton's Aunt Lil comes to visit and quickly decides it's time she help the hesitant Adam propose to her favorite niece. Her plan is to make Adam jealous by using his cousin Will but it doesn't go exactly as planned.
Rob Scot considers himself a man who could stay or go when it came to women. He may have met his match though when a woman he desires, along with her husband, take over an abandoned homestead, and they come to where Rob works to look over some stock.
Jared Garrity arrives in the Old West town of Happiness, Arizona, proclaiming he can revive the dead.
Having been given a stylish makeover by a famous French couturier, Elly May is mistaken for a visiting foreign princess by Mrs. Drysdale. Hoping to get in good with "royalty," Mrs. Drysdale throws a fancy party for Elly. This time around, the old dear is certain that her soiree won't be invaded by "those dreadful hillbillies."
Two women with a body in their car trunk come upon a house by chance wherein a crazed inventor has a machine that can bring back the dead.
After an off-hand comment puts Barney in the doghouse with Thelma Lou, he sees her spending her free time with Gomer instead. Not wanting to hurt his friend, Gomer tries to get her to stop seeing him by falsely professing his love, but ends up engaged to her instead.
Moody bounty hunter, Dev Farnum, shows up on the Ponderosa, where the Cartwrights are harboring the wife of the man he is after.
Given three months to live by a quack peddler of patent medicines, a mousy bank clerk quits his job, withdraws all his money, makes ready to go to California, and falls for a girl who may endanger what time he has remaining.
Searching for the third key, Ian and Barbara meet with the sinister trapper Vasor before following Susan and the others into a cave system guarded by the mysterious Ice Soldiers.
A World War II veteran and a Japanese-American gardener battle each other over a war that ended more than 20 years ago.
A kidnapping hoax leads to murder when the ransom note gets into the wrong hands.
Granny is waking up the family so they can get to their new store: The House of Granny. Jethro wakes up sleepy, not wanting to be up, but as soon as Granny mentions breakfast, he is dressed in a split second. Jed is carving a Y in the kitchen, and when Jethro sees the shavings in the bowl, he thinks it is cereal. Jed tells him to have corn flakes instead. Granny goes to wake up Elly May, saying that her store opens at a decent hour—the crack of dawn!
A government agent faces a crisis of conscience when he infiltrates a band of aliens marooned aboard the wreckage of a flying saucer.
After Barney sees Andy and Helen kissing in a jewelery store, he becomes convinced they are secretly engaged and decides to throw a surprise engagement party, much to the chagrin of the un-engaged Andy and Helen.