Spencer is not much of a horse. His ears don't stand up straight and he has a sway back. He lives in the town of Grum, where everybody talks to everybody else.
Spencer's best friends are Roland a raccoon, Simon a Siamese cat, Fred a dog, Gunther a plow horse, Mr. White a father, Mrs. White a mother, and Peter a boy. They all live together on a farm and have very satisfying adventures.