Andy unexpectedly has his hands full as The Darlings, a family of musicians from the mountains, arrive in Mayberry to meet a bus due the next day.
Charley decides it's time to quit as engineer of the Cannonball when the citizens of Hooterville seem too busy to spend anytime with him.
Hoss befriends a former Army scout (Henry Hull) who drinks to forget the massacre of his troop.
A young bank robber gets a job on the Ponderosa to prevent the sheriff from finding the other members of his gang.
Adam and Little Joe try to warn Hoss when he befriends a violent man (Cal Bolder).
Adam and Little Joe try to warn Hoss when he befriends a violent man (Cal Bolder).
Undercover federal marshal John Carruthers (John Wayne) is suspected by the local sheriff, Jake (George Hayes), of stealing the town's payroll, but his suspicions are sidelined when young Betty Mason (Eleanor Hunt) announces that her father, an important businessman, has been murdered. Without him, supplies will not reach town, and homesteaders will starve. When town leader Malgrove (Edward Peil) offers to buy the locals out, John and Jake get suspicious, and uncover a land-grabbing conspiracy.
Adopted by the wealthy rancher Arch Strobie, orphan Owen Daybright (Burt Lancaster) grows to be a respectable foreman on Strobie's ranch. Strobie's natural son, Lee (Robert Walker), is jealous of Owen and finally finds a way to undermine his upstanding brother. When Lee conceives an illegitimate child with Lily Fasken (Sally Forrest), who refuses to name him as the father, he tells her revenge-minded brothers that Owen is to blame, hoping they'll take his half-brother out of the picture.
A gunfighter (Cameron Mitchell) who is going blind escapes from prison for a showdown with an enemy (Georges Rivière) he can only hear.
A Civil War veteran (Chuck Connors) and his four buddies take jobs as mercenaries in Colombia.
The Clampetts show a boy how to have fun.
Little Joe runs into romantic complications when he tries to teach a deaf girl (Stella Stevens) sign language guest Albert Salmi.
A small-town Southern preacher's (Kenny Rogers) pacifist nephew (Fredric Lehne) is taunted for refusing to enter World War II.
Colonel Harvey, a traveling salesman, arrives at Mayberry and captivates Aunt Bee, who buys Harvey's dubious elixir and invites him for dinner. When Andy and Barney find Aunt Bee clearly drunk, they analyze Harvey's elixir.
Andy's knowledge of American history is put to the test by Opie and a new teacher.
Andy uses common sense and Barney uses modern technology to solve several burglaries at a filling station.
Uncle Jo plans to use Orville Miggs' flivver to power his own railroad and bankrupt the Hooterville Cannonball.
Uncle Joe wants to cash in on the recent Beatlemania fever, by making up a girl group named The Ladybugs, starring his nieces and Sheriff Ragsdale's daughter.
An old friend of Kate tells the girls to dig up some eligible prospects, in order to get Kate married again.
Jed takes over Drysdale's job for one afternoon and wins him the "Banker of the Year" title.