George è un grande appassionato di musica e, in particolare, dei "Lobos de Plata": un piccolo gruppo musicale latino a carattere familiare. Quando il palco pubblico dove si esibiscono normalmente i Lobos de Plata viene smontato per motivi di sicurezza, la band ha bisogno di un altro luogo in cui suonare. George farà di tutto per aiutare i suoi amici.

It is George's first day of spring on the Renkins' farm and he and Bill arrive on the farm just in time to see Dumpling, the Renkins' duck sitting on her eggs to hatch them. But when she leaves and George sits on the eggs in her place, one of the eggs hatches and the duckling thinks George is its mother. George needs to try to get the duckling to see its real mother.

George scambia il suo carrello con del succo di mela. Il giorno dopo si pente e fa di tutto per recuperarlo, scambiandolo con altri oggetti. Ci riuscirà solo alla fine durante il "Mercatino degli scambi".

George gets to meet Mr. Zoobel's newest pet, a chameleon! Mr. Zoobel tells George that the chameleon has a unique ability: she can change her skin color to blend in With her surroundings. After she breaks out and George cannot find her, he thinks she may have changed color to blend into her hiding place.

George e Myh vogliono andare a visitare lo zoo in metropolitana. Quando Myh si allontana per prendere una mappa, George non resiste alla tentazione e sale su un treno che sta partendo. Dopo essersi rincorsi per un po', i due si ritrovano alla fermata dello zoo.

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.

Bill sta per partecipare al Soap Box Derby, una gara di automobili senza motore in cui il pilota deve costruire con le proprie mani l'auto che guiderà durante la competizione. Elettrizzati da questa nuova esperienza, George e Allie decidono di costruirsi un'auto da gara e partecipare al Derby... Dovranno quindi cercare il materiale per la vettura e mettere insieme tutti i pezzi.

George is off to one of his favorite places in the city, the library. But when Mrs. Dewey the librarian has to run off, she leaves him in charge of the library to stack and sort books. When George has trouble finding a certain book, he decides to rearrange them, first by color, then by size. But then Steve tells him that the proper way to arrange books is by subject.

George vuole organizzare una festa di compleanno per il suo amico Myh. Si accorge troppo tardi che il dolce e le decorazioni sono troppo grandi per lui. Sogna quindi un mondo a sua misura...

George and the Man are staying at Professor Wiseman's beach house and George has his favorite toy: Yorbo the Robot. But after taking it outside, it gets buried under the sand in a sudden thunderstorm and George wants to find it. He has trouble trying to find it on the huge beach, until a lady comes and shows him a metal detector. But when George cannot use hers anymore, Professor Wiseman shows him how to make one out of an FM Radio and a calculator.

George rimane incantato quando vede che, al museo dove lavora la professoressa Wiseman, hanno installato dei distributori automatici di merende e pasti caldi.

At the annual Spring fair in the country, George and Allie come across a sheep shearer and a family making yarn out of a sheep's wool. They also come across a sheep herding contest where Mr. Renkins commands his dog, Bo with a special whistle to herd sheep. When they return home to the country house, the scarf George bought from the yarn makers begins to unravel and they need someone to fix it, but Jumpy Squirrel steals the yarn leaving them in search for more. It seems all of the Renkins' sheep were sheared at the fair and they begin to escape the pasture! George sees the whistle Mr. Renkins used to command Bo and uses it to command Bo to stop the sheep from escaping but is not sure how.

George accompagna Marco a una partita di baseball. Manca il segnapunti e il Coach chiede a George di segnare il punteggio sul tabellone. Ma George non conosce ancora i numeri...

In a sunny but snowy winter day in the country, George comes across Bill building an igloo in an attempt to earn his newest Sprout Badge. Bill tells him that to earn the badge, he will build an igloo and spend the night in it. George decides he would like to build an igloo of his own but he would like to make it big enough for all of his friends. Bill reminds him that smaller igloos hold more heat in but George remembers several thing Bill had done to make his igloo airtight. George builds a larger igloo but does not make it airtight, and he winds up freezing in the middle of the night. So he decides to build another igloo inside the house.

Il custode del palazzo dove abitano George e l'Uomo dal Cappello Giallo riceve dal corriere un grosso pacco misterioso.

The Man in the Yellow Hat is busy preparing for dinner with Professor Wiseman, so he sends George to fetch some groceries for him. On the way, George realizes that their usual grocery store isn't open, but a new grocery specializing in Vietnamese food has opened across the street. George finds fruits and vegetables that are similar to the ingredients on his grocery list, but when he takes them home, he finds that they don't work in The Man in the Yellow Hat's recipes. George gets a tour of the store from the store owner's daughter, Mei.

Steve e George vogliono vedere se la barca egizia costruita da Steve per il compito di storia, resiste a ogni intemperie. Purtroppo la barchetta scappa via finendo nelle fogne. George e Steve faranno di tutto per recuperarla.

George is busy planting food in the rooftop garden of the apartment building but he has a problem. He can't stop Compass and his pigeon friends from eating all the seeds. He recalls how the Renkins built a scarecrow in their garden to scare away birds so he decides to do the same thing. But his is not scary enough to scare away any birds. Later, he and the Man with the Yellow Hat go to a farm in the country where George comes across a windmill. The farmer tells George that windmills can be used for many different things and they are all done with nothing but the power of the wind. So George decides to build a windmill of his own to make his scarecrow move. Reference: Don Quixote and the windmills.

È il giorno della festa della mamma e Marco vuole organizzare una festa a sorpresa per la sua mamma Maritza a casa di Myh e George. Per l'occasione decidono di preparare il piatto preferito di Maritza, e di addobbare la casa con una pinata (pentolaccia) costruita da loro.

When George sees a cricket at the annual country gymnastics competition he decides to follow it across the gymnastics obstacles because, being a monkey, he is very good at jumping and swinging. When Mrs. Somersault the area gym teacher sees George, she decides to sign George and Allie up for her gym class, which Bill also agrees to join. While they all enjoy her gym class, they are disappointed to find out that it only takes place once a week. So, they decide to build a gym of their own in the back yard of the country house, where they can practice when it is not gym class day.