Stanley and his best friend Dennis, a talking goldfish, love animals and adventure. Stanley explores the animal kingdom with Dennis and sometimes his dog, Harry, his cat, Elsie, and some neighborhood friends. They learn all about animals and their habitats in Stanley's Great Big Book of Everything. The book also helps them solve problems at home and school. Each day Stanley uses his thinking skills, imagination and love of animals to encourage viewers to help him solve problems and find out more about the world around them.