Four mice-like characters - Sniff, Scurry, Hem, and Haw - live in a maze and search for cheese each day to eat. Sniff and Scurry have simpler brains and rely on instinct, while Hem and Haw can think and feel emotions. One day, they arrive at their usual cheese station only to find the cheese is gone. Sniff and Scurry set out to search the maze for new cheese, while Hem and Haw refuse to accept the change. Haw eventually decides to also search the maze, while Hem insists the cheese will return. After struggling to find food, Haw learns to accept change and keep moving forward. The story teaches that change is inevitable and one must be willing to adapt