On his visit to Chicago, Buster makes a new friend and sends postcards back home.

His friends tease Arthur when he gets glasses, but he soon learns to wear them with pride.

Buster goes away for a month, and Arthur becomes sad and confused when he does not receive even one postcard from him.

Buster and his father visit South Dakota and send postcards home describing their visit to the Crazy Horse monument, their experience with buffalo, and more.

Arthur thinks that having his teacher stay at his house will be a horrible experience.

D.W., Arthur's little sister, tells all about what it is like to be in preschool, including essential information about such topics as bathroom breaks, storing things in a cubbie, and sharing at play time.

Arthur decides to enter his dog Pal in the upcoming dog show.

D.W. shows how to be "perfect" for a day by demonstrating cleanliness, orderliness, and good manners. Includes a self test on manners.

The Brain is upset after being beaten in a math contest and it's up to Arthur to convince the Brain that he's still as smart as ever.

Arthur's determination to prove he is responsible enough to have a puppy brings him a menagerie of animals to care for.