It is early winter in the country and George wants to play outside. But the problem is he has toys for summer and snow but no toys for just plain cold. He decides he will have fun by playing with Bill's bunnies but Bill is taking them to his grandmother's house for the entire winter. Bill wants him to leave out nuts and seeds for Jumpy Squirrel all winter and George wants to find a way to have fun in the winter cold. Later, after he sees how the water in his pool is frozen, he finds a way to have fun outdoors AND give Jumpy the food he needs.

George makes homemade slime like a slug.

George wakes up on a windy day in the country. His friend Bill introduces him to a kite, which George wants to fly. However, Bill must go home and George cannot play with the kite until he returns. His curiosity gets the best of him and he soon finds himself flying around the countryside, even taking his friend Jumpy Squirrel with him. This is the pilot episode for the series.

George's favorite bouncy ball keeps deflating.

George makes a totem pole for Father's Day.

The Man in the yellow hat is competing in the country town bowling tournament at Bowlmore Lanes but it seems like George does not have any luck getting the ball to hit the pins because it keeps falling into the gutter. When he sees The Man polishing his bowling shoes because they make it extra lucky, George decides to polish his bowling ball too. After George polishes the ball he decides to give it a test roll. However, the yard is bumpy and the driveway is a hill so he just cannot get the ball to roll straight. That is until he keeps the ball so long that The Man forgets it and George sees the road from the country house to the Bowling Alley is like a big bowling lane with gutters.

George searches for ice to save his small snowman.

George uses shadow puppets to help Allie.

George is pretty mad at Hundley who will simply not let him play in the lobby and wishes Hundley could be more like him. One day though, he notices that Hundley is barking loudly and acting bouncy and playful, much to his wish! He then notices that Hundley seems to go back and forth between acting bouncy and playful, and acting like his normal self. Realizing that something is not normal about Hundley's split personality, he tries to figure out what is going on.

George becomes obsessed with magic

George and Betsy learn that Charkie is afraid of thunder.

Professor Wiseman needs the Man with the Yellow Hat's help to assemble some rare dinosaur bones into a skeleton in time for an important archaeologist, Dr. Raj Desai, to see them. Wiseman and the Man finish the task and meet Dr. Desai for lunch. Meanwhile, George and Gnocchi play outside with a toy plane, which floats though a window--landing on the newly assembled dinosaur. When George climbs the fragile bones to retrieve it, the entire skeleton collapses! Using another dinosaur as a model, George is able to organize, sort, and piece together the bones back into its proper form. But how will Dr. Desai feel about a monkey working on his precious dinosaur bones, especially when the wrong head ends up on the dinosaur's skeleton?

George loves feeding the birds, but they must be starving, because all the seeds keep disappearing! Perplexed, George returns with more food, only to find a big, bushy tail sticking out of the feeder. It's Jumpy Squirrel, caught in the act of eating all the seeds! George tries to squirrel-proof the birdhouse, moving it further from the tree trunk, clearing away freestanding objects, and even developing a pulley laundry line system to hang it from. But to no avail - that squirrel can climb - and apparently eat - anything! Why does Jumpy keep taking the seeds? Has his appetite suddenly grown — or maybe they're not all for him?

The secret to Bill's amazing garden is the compost he uses to feed his plants. George decides to make compost for his hungry plants...so George empties the entire contents of his fridge in the backyard. The next morning, George realizes that instead of making plant food, he's made a stinky mess! The Renkins teach George that proper compost consists of dirt, water, and air with only certain foods (no meat or dairy). Back at the apartment in the city, George sees that all the plants need food. George prepares a hearty "meal" ...using every container that he can find. When the Man with the Yellow Hat wakes up to an unusual smell, he follows his nose to the compost! To the neighbors' delight, George made enough for all the plants in the building.

George throws a party for Mr. Glass's apple tree.

George helps watch the puppies at an adoption fair, but one escapes.

The Renkins' are having a problem with their grape yard. A group of gophers have made their home in the ground under the garden and are stealing the grapes. Upset with the problem, Mr. Renkins calls Calhoun the Gopher-getter, an exterminator, to come and catch the gophers. George does not like the idea of somebody catching the innocent gophers, even if he does plan to release them again. So he decides to build a connecting tunnel between his house and the Renkins' garden so the gophers can escape.

Armed with a cool new monkey-sized vacuum, George watches with amazement as his new "toy" sucks up everything in sight... including some of Mr. Stamp's rare stamps! Inspired by a TV superhero, George dons a cape and embarks on a citywide "cleaning" spree, using his little vacuum to suck up everything from bird food to dog biscuits to a winning lottery ticket. When the townspeople can't catch up to the cleaning monkey, will they view George as a Superhero Vacuum Monkey or a Super Villain?

George is outside watering the garden when he gets muddy. He tries to take a bath but there's no water. Not even in the sink. Mr. Quint explains that they have a broken pump. And then he explains how to get the water, with a well and a pump. The pump they have is old. Then The Man explains that an electric pump sends it through a pipe to the house. And they go back to the city since it'll take days to get a new pump. When the go to the apartment, they don't see an orange flier. It says the plumber must shut off the water now. This means there's no water here, too. So George tries to get more water with a pipe.

The Man in the yellow hat is trying to get ready for his photo on his new licence but when George tries to help, the ensuing chaos ruins the Man's hat! The hat is cleaned and restored like new and the Man puts it on the kitchen counter right next to an identical looking box of trash. In a rush, George accidentally throws out the box with the hat and must go on a city-wide spree to find it. Unfortunately it seems like every trash can and dumpster in the city George finds has already been emptied by the garbage truck. George finds some disposed items at Pisghetti's restaurant but Chef Pisghetti tells him that it is not trash, it is recycling. He tells George to go look for the hat in the landfill.

The Man With the Yellow Hat is about to get a big job! He is going to go up into space to fix the Einstein-Pizza Space Telescope, which is broken and pointed right at Pizza's kitchen window. Dr. Einstein and Professor Pizza explain that the spaceship has a self-locking air lock but they accidentally forgot to make a way to open it from outside. George has to tag along to push the button that would let him in but is forced to go outside and do the job when the Man's tether breaks. Worse off, George is told he has only 2 minutes of air to complete the job.

George is at Betsy's birthday party and sees that they have something he has never seen before, a piñata! After George is told how to play, he goes on a free-swinging spree and winds up breaking everything in the backyard BUT the piñata! Aunt Margret tells George to stay outside and play with Charkie and asks him to put his blindfold on and follow her around the backyard with his other senses. Charkie soon escapes the backyard and a blind George begins to follow her around the city in a way other than seeing her.

George and the Man with the Yellow hat are lending a hand picking apples at Renkins' Farm, George takes an apple coveted by Jumpy Squirrel, who snatches it back and hides in the barn. George follows, and when he reaches for the light switch, accidentally turns on the giant cider press! All of the apples they've collected are being washed, chopped, and squished into liquid! Not wanting the Renkins to be mad with the sticky mess, George fills everything he can get his hands on with the apple juice squirting out of the machine. When the Man with the Yellow Hat and Renkins' arrive, they're astonished to see the entire harvest bottled up! Much to George's relief, the Renkins aren't upset — they're thrilled. And Jumpy, much to his relief, finds his perfect apple.

It's the hottest day of the year, and to cool down, George wants to build a snowman! But how can he build a snowman when there's no snow? George experiments with crushed ice cubes, but they melt too quickly. Mud... but it doesn't stay in the right shape. And rocks, which are too heavy to lift! George is stumped. What sticks together, doesn't melt, and wasn't heavy? Of course, sand! George convinces the Man with the Yellow Hat to drive him, Bill, and the Renkins to the beach, where they can all cool off and George can finally build his summer snowman.

George and Allie find a tippy thing on the Renkins farm.