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.
When the animals get self-help author Dr. Filly to counsel Freddy and Peck, he has everyone reverse roles, with chaotic results.
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
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
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
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.
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.
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.
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.
The animals take over the local news after the head anchor, Hilly Burford, is crushed by a giant cheese curd made by Otis.