The narrator, a wire‑haired fox‑terrier, relates his wanderings between urban streets and rural farms, recounting how he befriends other dogs and people, endures city dangers and changes, and faces losses and rescues. The first half details life in the city—scrapping for food, forming alliances, and coping with indifference—while the second follows a move to the countryside where encounters with shows, schoolchildren, and neighbors lead to moral tests, medical scares, and acts of loyalty. Themes include canine devotion, humane treatment of animals, adaptation to changing environments, and the search for a permanent home.