When the animals get self-help author Dr. Filly to counsel Freddy and Peck, he has everyone reverse roles, with chaotic results.
Clonedemonium: An evil scientist threatens to mass-market the animals' adorable mini-clones as pets! / Hickory Dickory Donkey: When a beautiful she-donkey takes an interest in Pip, Bessy suspects ulterior motives and follows them on their dates, causing the other animals to accuse her of being jealous.
To get the animals off the farm, the Canadian crows forge a treasure map and make the animals believe that each of them wants the treasure for himself. The animals race against each other to find the treasure, leaving the barn available for corn-plundering.
Plucky and Me: Otis finds a giant chicken egg and decides to hatch it so they can have a fifth for polo. Only the giant chicken turns out to be a dinosaur! The animals immediately want to get rid of it, but Otis has paternal feelings and begs the animals to give him a chance. They relent, but the dinosaur quickly grows 1000 times its size and falls in love with Mrs. Beady! / Pig of the Mole People: Pig's mole subjects (from when he was Emperor of the Mole People for 45 minutes) have sought him out to return as their Emperor and defend them from Eric the Terrible, a verbally abusive worm.moreless
Clown and Out: While trying to escape Snotty Boy, the animals run over Snotty's clown father. His dad survived, but has lost a lot of hilarity and Pig takes him into surgery. Otis disguises himself as Snotty's father to distract him while he recovers. Only Snotty comes to love and admire Otis in a way he never did for his lame clown father. Otis has to think fast before he ruins this miserable family. / Clan of the Cave Cow: After bumping his head during a freak ski accident, Otis is mistaken for a prehistoric cave cow and taken to a laboratory for research. Otis loves all the attention and snacks, but hates that the scientist wants to dissect his brain to find out what makes him tick. Meanwhile, the animals find the cave cow, mistaking him for Otis.moreless
While creating a fake alien news story to scare away Mrs. Beady, Otis accidentally attracts actual space aliens bent on conquering Earth! Otis tries to stall them at the barnyard while he tries to find their weakness.
Four Leaf Otis: The animals wake to discover that a leprechaun has stolen the Farmer's entire St. Patrick's Day potato crop! As they try to catch the Irish stereotype, the leprechaun uses his whimsical magic and transforms the animals into shamrocks and corn beef sandwiches. Realizing they'll never catch the trickster, Otis decides to cut out the middle man and steal the leprechaun's gold. / Cop Cow: After breaking the cop's toe, the town is left lawless and Otis is sworn in as Sheriff. First order of business; deputize all his friends! The animals are soon faced with a mysterious masked doughnut bandit terrorizing the city. Otis follows the clues and realizes that the doughnut bandit is actually Pig! He's just been wearing a ski mask to disguise he's an animal while shopping for doughnuts and using gun to gesture with.moreless
A Catfish Called Eddie: Otis' old pal Eddie comes to the Barnyard for a visit, and Pip smells a rotten fish. Beady and the Beasts: Mrs. Beady take up residence in the Barnyard when her mother-in-law comes to visit.
Club Otis: Abby and Otis put the farm in peril with their competitive social clubs when Otis used a volcano as his latest recruitment ploy.
The Chronicles of Barnia: Snotty Boy believes he is in the mythical land of Barnia while playing a game of "Dungeons and Barn Animals" with the rest of the gang.
The Big Barnyard Broadcast: Mrs. Beady is able to get footage of the barnyard animals talking and walking upright on tape and makes plans to air her discovery.
Dead Cow Walking: Otis is distraught when he believes he has only one week to live and thinks his friends don't care. He pulls a prank on them to get their attention.moreless
Abby's formerly-lovable cousin Veronica comes to visit, but she now turns out to be a manipulative bombshell who takes advantage of Abby's friends.
When the evil Professor Twiny Vines plans to steal the Jurassic Corn Kernel at the county fair, Otis suits up as the Cowman to stop him. Unfortunately, things take a turn for the worse when the town mistakes Cowman as the thief.
Otis is more than annoyed with Abby after she captures Bigfoot and harbors him at the farm.
A Tale of Two Snottys: Pig impersonates Snotty Boy, then takes up residence at the Beadys and refuses to leave.
Snotty's New Pet: Snotty Boy catches Pip and intends to feed him to his snake.
Otis Season: Otis makes a moose costume for "Moose Appreciation Week," but ends up wearing the costume during moose hunting season because he missed the official date.
Cow's Night Out: The barnyard animals come to Otis' rescue after he parties with the Jersey Cows and they dump him.
Otis' new Kobe cow neighbors declare him the reincarnation of the Sun Cow. At, first Otis enjoys this royal luxury until he finds out that the Sun Cow has to get served at Cap'n Kabuki's Steak House.
After Otis injures Peck, he takes over as a school teacher. However, he decides to educate them about fun instead. But the kids go too far and launch the animals into the sky with a silo.
Otis becomes a crop-dusting ace, but stops flying when he crashes. He later has to face his fears when a swarm of locusts head for the town.
The barnyard gang accompanies Pig back to his homeland, where he encounters his mean-spirited bride Brunhilda.
The animals take over the local news after the head anchor, Hilly Burford, is crushed by a giant cheese curd made by Otis.
The animals bribe the groundskeeper of a golf course, Crazy Louie to let them play a round. But when Pig accidentally knocks out Louie's tooth, Otis decides the win money for a new tooth in a tournament.
Otis takes in a clam that Abby rescued from a nearby café. However, the clam is a rude and demanding house guest and, to make matters worse, it reproduces many partygoing clams.
When Duke is sent to the vet after being sprayed by Skunky, he brags about barnyard life to a beagle named Baxter. Upon hearing this, Baxter switches places with Duke and takes his place at the barnyard as the new, fun Duke.
After being encouraged by Otis, Peck takes a potion to bolster his confidence enough to speak to the hens, which results in his challenging one to a duel.
When Otis loses the saloon in a rigged game of Fizbin to Chubs Malone, he tries to win it back by cheating but gets caught.
Otis breaks the farmer's video game console and the gang need money to replace it. They then decide to earn it as British babysitters, but end up taking care of Snotty Boy. But they must do so quick, before the Beadys arrive.
With the rest of the town hot on their heals, Cowman and his sidekick Ratboy must save their friends and stop Twiny Vines and his unsuspecting partner, Mrs. Beady.