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.

Buster Plays Along takes Buster to San Antonio for the International Accordion Festival. Buster visits the Alamo, samples Tex-Mex food, and listens to his new friend Robert practicing accordion.

Buster on the Farm is about Buster's adventures on his friend Lauren's family farm in Indiana, where Buster rides a tractor, milks a cow, and visits the county fair.

Buster sends postcards to his friends back home when he and his father visit an international food festival in Wisconsin, where he meets six girls who will be performing a traditional Hmong dance.

Buster sends postcards to his friends back home when he goes to Oregon and learns about pumpkins.

Buster on the Town describes Buster's trip to Chicago, where he visits the Sears Tower, travels around on the El, and meets Farah, a girl of Pakistani descent.