Pearl continues to pursue Mr. Brewster, while a Jasper Depew courts Jethrine. Jed tries to enroll Jethro at an exclusive Beverly Hills elementary school. When the headmistress learns that the Clampetts are neighbors of Mr. Drysdale, who holds the mortgage on the school, she warms up to the idea. There is a bit of a shock when she comes by to pick up Jethro and realizes who will be her new fifth grader.
Chicago. Right after the St. Valentine's Day Massacre. (February 14, 1929.) Ness and his men are scouring Chicago, looking for Bugs Moran. Ness says there used to be 2 gangs in town, now there's just one. Ness figures if they get to Moran first, maybe he'll talk-- he might just be mad enough to give them the information they need.
Barney loses his self-confidence when two unlawful bullies laugh off his attempt to run them out of town. Andy tells them Barney is actually a trigger-happy lawman out for vengeance, but the bullies quickly see through the ruse and Barney now must find the courage within himself to stand up to them.
An assassination plot unfolds as four gunmen disguised as cavalrymen enter North Fork. Their target: Sen. Jim Borden. Their weapon: a Gatling gun.
The owner of a stamp shop is murdered when excitedly talking on the phone to a contact about the rare Mauritius Penny that has turned up on a list. Cathy Gale applies for a job in the shop, and she and Steed witness another murder in an auction room.
A band of ne'er-do-wells, led by their mother, see in town a young woman that pleases them and decide to take her by force.
With his eye on an inheritance, Fred tells his rich Uncle Tex that he has named his child after him. Fred, of course, has no son, which means that he has to find a baby now that Uncle Tex is coming to visit! Unable to borrow a real baby, desperate Fred cons Barney into playing ""Baby Tex.""
An unscrupulous uncle, who is in reality the father of his niece, returns home from the sea seeking money from the sale of oil leases on his land. When the uncle is found murdered, his shipmate is charged with the crime.
Elly May starts wearing dresses but takes it as an insult when someone says she looks like a city girl. Mr. Drysdale talks Jed into taking in his butler Ravenswood and upstairs girl Marie in a plan to civilize the Clampetts, but they don't quite understand the idea of servants.
When Andy and Peggy must break a date, Barney mistakenly sees this as the end of their relationship. He decides to play matchmaker to help Andy mend his broken heart, with disastrous results.
Lou looks for a way out when the man her dying father promised her to arrives.
The Civil War once again divides the citizens of Nevada, as well as Adam and Joe Cartwright. One of season four's highlights, the plot involving British spy Bill Stewart, based on historical fact.
Spacely's competitor Cogswell invents a flying suit. Meanwhile, Elroy thinks he's invented a flying pill. When George picks up the wrong suit at the cleaners, he is convinced Elroy's pills actually work.
A trapper leaves his friend dying alone in order to save his own life, only later to stumble across that friend in Dodge, very much alive and wanting him dead.
Steed is trying to infiltrate a group of assassins currently based in the South of France. He robs the leader of some jewellery in order to impress him, then waits for them in the local club. It just so happens that Venus Smith is singing there.
Fred overhears Wilma on the phone mentioning ""a little stranger"" who will shortly be visiting the household. Assuming that Wilma is pregnant, Fred summon his dreaded mother-in-law. But the ""little stranger"" turns out to be Arnold the paperboy.
Wally and Eddie get jobs at the Mayfield Dairy thanks to Ward pulling some strings. They soon unknowingly find themselves involved in a plot started by the foreman and his assistant who are secretly stealing the merchandise. When Ward learns of the plot, he warns Wally who in turn tries to warn Eddie, but Eddie doesn't buy it.
A continuation of the dramatic anthology series Alfred Hitchcock Presents (1955) hosted by the master of suspense and mystery, Alfred Hitchcock.
Phil Schuyler is a two bit songwriter who comes to a bad end on Halloween night. Someone enters his bungalow while Phil is taking a bath and tosses an electric heater into his tub thus turning him into a crispy critter. Damian White, husband of a famous musical comedy star, was seen entering the bungalow around the approximate time of the murder by an eyewitness. But what about all the trick or treaters?
Granny wants to go home because folks are so unfriendly and no one has come to call. Jed convinces her they should call on them, and they find that people welcome them and give them all manner of gifts when they show up on Halloween in their normal hillbilly clothes. Meanwhile, Jed works on getting Pearl to come visit while she's trying to get hitched to the oilman and find a young man for Jethrine.