The story follows four characters - two mice named Sniff and Scurry, and two little people named Hem and Haw - who search for cheese in a maze. One morning, they discover their usual source of cheese, Cheese Station C, has no more cheese. While the mice quickly set off to find new cheese, Hem refuses to accept the change and wants the old cheese back. Haw eventually decides to also search for new cheese. He writes sayings on the maze walls to document his journey of overcoming fear, embracing change, and ultimately finding new and bigger supplies of cheese.