Fred fakes illness so he and Barney can get out of taking their wives to the opera. Using prehistoric helicopter as a means of escape, the two of them join their bowling team for a night of fun. They almost get away with their scheme, until loose-lipped Barney gives away their night's activities.
Believing he has made Wilma and Betty disappear through magic, Fred capitalizes on his newfound freedom by taking Barney to a nightclub, the Rockland, where an old friend, trumpeter Hot Lips Hannigan, is performing. The jazz is cool until the wives show up to teach their wayward husbands a lesson.
Fred and Barney jointly build a swimming pool, but Barney hogs the pool time, angering Fred. To get even, Fred hires a pal to pose as a police officer and break up one of his neighbor's pool parties.
Fred uses his influence with a business friend to obtain a job for Barney, who becomes a furniture repossessor. To the dismay of both, Barney's first assignment is to repossess Fred's television! Unwilling to betray his friend, Barney pays off Fred's delinquent television bill with his first paycheck.
A conk on the head turns Fred into an aristocratic sophisticate, whose behavior manages to disrupt the entire city of Bedrock.
A Hollyrock film company goes on location in Bedrock to film its new feature Monster From The Tar Pits, and gullible Fred is enlisted as stand-in for star Gary Granite. But Fred's real problems begin when Wilma and Betty audition for roles in the film and end up going ga-ga upon meeting movie stars Rock Pile and Wednesday Tuesday.
Roped into babysitting little Egbert, the child of a friend, Fred and Barney take the tot over to the pal Joe Rockhead's house to watch the fights on television. Egbert befriends Joe's pet runtosaurus and dresses the creature up in his baby clothes, which results in chaos when the pet - whom Fred and Barney mistake for the baby - escapes from the house and dashes up a tree.
To finance their dream of opening a pool hall, Fred and Barney visit the dinosaur racetrack where Fred bets his entire paycheck on a long shot. He tells Wilma that he has lost his check. When the long shot pays off, Fred and Barney are initially elated, but they quickly realize their problems are only beginning.
Barney decides to surprise Betty with a belated engagement ring, which he gives to Fred for safekeeping. But Wilma discovers the ring and assumes it is a gift for her. Not wanting to shatter her illusions, Fred decides to buy a second ring, but doesn't have the cash. He cons Barney into going several rounds with a boxing champ in order to win a $500 prize.
Wilma and Betty win a trip to Hollyrock from a television contest. Finding themselves lonely and bored, Fred and Barney take vacations from work and follow them out. When Wilma is "discovered," Fred muscles his own way into the world of television to bring her back.
Fred's victory in The Loyal Order of Dinosaurs golf tournament is soured when club president Barney withholds his trophy for nonpayment of club dues. Fred retaliates by demanding that Barney return every item he has borrowed over the years. The stalemate continues until Wilma and Betty manage to bring their husbands back together.
Barney hides the sweepstakes ticket he and Fred have bought in the lining of an old coat, which Betty subsequently gives to a passing hobo. While the boys try to recover the ticket, convinced it is the winning one, Wilma and Betty have their own winning ticket stashed away at the Rubble's house.
Fed up with their jobs, Fred and Barney secretly plan to buy a restaurant, but then Fred has to deal with a suspicious Wilma who wants to know why two young girls (carhops who are seeking a job) are calling for him, and what the messages regarding two tons of dino-burger meat mean.
With a burglar on the loose in Bedrock, Betty decides to take judo lessons to protect herself. When Wilma wants to take lesson also, Fred ridicules the idea, arguing that one glimpse of a burglar would send her running in fear. To prove his point, Fred poses as the burglar and sneaks into the Rubble household, on the same night the real criminal shows up.
Fred and Barney decide to treat their wives to a night out, at an amusement park. Fred cuts a song at a recording booth as a souvenir but misplaces the record. It is later discovered by a group of teens who pass it along to a deejay, and Fred is suddenly transformed into unwitting rock star "Hi-Fye."
Fred and Barney sign up for dance lessons at Arthur Quarry's so that they do not humiliate themselves at the charity ball. Their excuse that they have joined the volunteer fire department falls apart when Betty and Wilma realize that the all-stone town of Bedrock is fire proof. The wives then suspect that their husbands are slipping out to meet other women.
When he discovers a bag containing $86,000, Fred's dreams of being a wealthy man finally seem to be coming true. But the money has been stolen from the bank, so Wilma and Betty force Fred and Barney to return the money to the bank, and unwittingly set them up as the primary suspects! The wives set a trap for the real culprits and Fred ends up saving the day.
Would-be hunter Fred convinces Wilma and the Rubbles to spend their vacation time in the mountains, hunting for snorkasaurus. Fred is successful in his hunt, but he gets more than he bargained for when the wives insist that the snorkasaurus be taken home as their new pet, Dino.
To commemorate his tenth wedding anniversary (which he only remembers because it falls on "Trash Day"), Fred wants to buy Wilma a Stoneway piano. He finds a hot deal - ultimately too hot - from a shady, cash-only businessman named 88 Fingers Louie.
While attempting to demonstrate his skill as a hypnotist to his wife and the Rubbles, Fred manages to hypnotize Barney into thinking that he is a frisky puppy, and is then unable to bring him back.
Jealous Fred's discovery of a love poem that was sent to Wilma prompts him to hire Bedrock's top detective Perry Gunite, to find out who the home-wrecking poet is. Gunite's investigation mistakenly points to Barney. Fred plans revenge against his friend until Wilma reminds her husband that he had written the poem himself years earlier during their courtship.
When industrial tycoon J.L. Gotrocks decides he wants to rub shoulders with the common people, dead-ringer Fred is hired to fill in for him in the board room. Fred savors his new lifestyle at the country club, but the plan begins to unravel when J.L. demonstrates little tolerance for the common folk.
Thinking they are undergoing an examination for a physical contest, Fred and Barney mistakenly sign up for a three-year stint in the Army! After a tearful goodbye to their wives they enter into the service, where they quickly blunder their way into volunteering for the first lunar landing mission.
Friend Gus Gravel invites the Flintstones and the Rubbles to his seaside hotel for an all-expense-paid vacation. But upon arriving, the four find that the hotel's planned "activities" seem more like work. Gus finally confesses that his entire hotel staff has just resigned on the eve of a huge convention.
Wilma and Betty are finalists in a television bake-off, but on the eve of the event, they contract measles. Donning wigs and dresses, Fred and Barney take their places in the contest.
Assuming the command of a Boy Scout troop, Fred quickly learns the hazards of a "routine" camping trip. Fred blunders his way through until an overnight flood leaves him and the troop hanging on a tree limb over a treacherous waterfall, hoping a ranger will rescue them.
Tired of hearing their husbands complain about finances, Wilma and Betty rent rooms to piano and bongo-playing student musicians. Fred and Barney go along with the arrangement, unaware that their wives are providing the lodging in return for music and dancing lessons.
Fred agrees to appear in a before-and-after weight reduction commercial, but is humiliated to learn that he is the before example. An offer of $1,000 if he can drop twenty-five pounds in a month fails miserably, as does every other diet plan, until an overeaters group takes him on as a challenge.
After discovering that Barney is a closet poet, Fred manages to link him up with songwriter Hoagy Carmichael and the three set out to write a hit song. The resultant tune garners the boys a moment of fame as songwriters.
Pebbles and Bamm-Bamm develop remarkable musical talent, which is exploited by teen impresario Eppy Brianstone. Soon the tots have no time to their fathers, which prompt Fred and Barney to kidnap them. After a frightening police chase, Fred awakens and realizes the whole episode has been a dream.
When Wilma gets a letter from her mother saying that she is moving in with her favorite son-in-law and his wife, Fred begins refurbishing a dilapidated shack to house Mrs. Slaghoople. But soon Wilma learns that he mother was not referring to Fred, but her other daughter's husband. Fred is delighted, until he realizes how much he spent on the shack.
Through a publicity contest, Wilma and Betty win movie star Stoney Curtis (voiced by Tony Curtis) as a "slave boy" for a day. Jealous Fred works him unmercifully, until Stoney offers him a job as his stand-in for a new movie. Fred quits his job and prepares for life as a star, which, of course, is not all it is cracked up to be.
A criminal named "The Mangler" vows revenge on Fred, the foreman of the jury (which included Barney) who put him away. When the criminal escapes from prison, the Flintstones and the Rubbles go into hiding. Through a series of mishaps, Fred actually manages to recapture "The Mangler."
Hoping once again to strike it rich, Fred buys a circus. When the performers quit, Fred must put a show on himself with the help of Barney, Dino, and Hoppy, which he does successfully - so much that the performers return, and the former owner buys the big top back. To prove he is cured of get-rich-quick schemes, Fred passes up a chance to buy an oil well, which of course pays off.
Samantha and Darrin Stephens guest star from television's "Bewitched" (voiced by series star Elizabeth Montgomery and Dick York). Darrin goes boating, while Samantha joins the Flintstones and the Rubbles for a camping trip, which ends up pitting the men against the women. Aided by Samantha's witchcraft, the women manage to out-do the men at every turn.
Fred and Barney discover a visitor from another planet, the two-foot high, green Gazoo, who becomes their servant. An evening out at an expensive restaurant, supposedly with Gazoo treating, becomes a nightmare as the alien disappears, leaving the Flintstones and the Rubbles to wash dishes to pay for the food.
Bored by his company picnic, Fred slips away to take a nap, and awakens twenty years later to discover that Barney has become millionaire B.J. Rubble, and that Pebbles and Bamm-Bamm have gotten married. Upon entering Wilma who is now living alone through Barney's largesse, Fred really awakens and realizes it was all a dream.
When Fred is fired by Mr. Slate for fronting the other employees' list of grievances, he turns to pastry entrepreneur by selling Wilma's gravelberry pies. But soon the couple realize they are spending more in ingredients than they are making in profit. Ultimately, Wilma recoups the losses by selling the recipe to a supermarket tycoon.
A hackneyed spy movie turns serious when the villainous Stonefinger and his henchmen suddenly come to life and begin to menace Fred and Barney. It takes the magical powers of Gazoo to get the situation straightened out.
For his costume for the Water Buffalos' masquerade party, Fred picks a spaceman's uniform. Unfortunately, he goes out on a night when a local radio station has launched a publicity stunt about an invasion by space aliens, a stunt that backfires and creates a panic in the city.
Fred's hopping around and howling in pain after dropping a bowling ball on his foot is mistaken for a new hit dance, the Frantic. Invited on the television music show "Shinrock," Fred comes down with stage fright, until a jab from a misplaced pin gets him hopping and howling again.
Barney is mistaken for the long lost Prince of Rockabia, which seems like good fortune until he learns that the sentence for abdication from the throne is death. The appearance of the real prince releases Barney from his royal ordeal.
Wanting to sneak out of a dinner date with their wives in order to bowl, Fred and Barney ask Gazoo for help. The little green alien creates clones of the boys, so that they can be in two places at once, resulting in the inevitable mix-ups.
Gazoo's bad marital advice not only fails to help Fred and Wilma, it actually leads to their separation. The couple reunite only after they each have nightmares warning them that the other is in trouble.
A mix-up at the pharmacy gives Fred pills that turn him into an ape. Barney is the only one to see this short-lived effect, which makes him wonder about his own health. But when the two dads take their kids to the zoo and Fred ends up in the monkey cage after taking another pill, his problem becomes apparent to all.
Gazoo takes Fred on a trip to the twenty-first century, including a stop at Slate Rock and Gravel Company, where Fred learns that the interest on a $4.00 loan he took from Mr. Slate comes to more than $23-million! Upon returning to the Stone Age, Fred vows to repay the loan immediately.
On advice from Gazoo, Fred and Barney start winning big at the racetrack, and attract the attention of a dangerous bookie named Big Ed. Since he got them into this latest mess, Gazoo comes to their rescue.
Two con artists posing as gold miners sell Fred and Barney phony mine. Wilma and Betty find out and trick the con artists into buying the mine back, but Fred and Barney, convinced of its value, won't sell. Only the threats of the con men convince them to recover their investment and head back home.
Fred refuses to play the lead in the PTA show, "Romeorock and Julietstone," opposite Wilma, so she casts Barney instead. Feigning the mumps, Barney (who is terrible in the part) drops out, forcing Fred to take over. But then laryngitis causes Wilma to drop out, so Barney rushes back in, now playing Julietstone!
Gazoo's intervention allows Fred to be boss of the quarry for the day, during which time he finds out there is more to the position than executive lunches and the feeling of power. At the end of the day, he realizes he would not really want to trade places with Mr. Slate.
Fred is delighted to be invited onto Mr. Slate's yacht, until he learns that he is there to paint it. Asking the Rubbles to join them, the couples start having so much fun on board that they forget the paint job and fail to notice the yacht has broken free and is drifting. Slate charges Fred with mutiny and piracy, but Fred redeems himself when he rescues the visitors to an island (including Slate) from a volcano.
When Fred feigns a headache to get out of violin recital, Wilma invites her old flame Wilbur, who still carries a torch for her. Jealous Fred follows them to a dance, along with Barney and Gazoo. Fred asks Gazoo to change Barney into a dance partner, so he can make Wilma jealous in return.
Performing seal dripper takes a liking to Barney, who soon finds himself involved in a plot to steal the aquatic attraction. The leader of the gang of thieves turns out to be Dripper's trainer, who is tired of the seal getting all the attention.
Fred is mistakenly granted membership to a swanky country club and asks Gazoo to turn him into a gentleman, a plan that involves taking ballet lessons, which makes him the laughingstock of the neighborhood. Finally Fred decides that he and Wilma should be themselves, and together they become the hit of the club.
Fred relives the exciting adventures of his grandfather, flying ace Lt. Rocky Flintstone, and his sidekick Lt. Reggie Vanderrock, whose mission is to rescue the famous spy Mata Harrock from the clutches of Baron Von Rickenrock.
