Alfie is upset when Max and Monty tease him about his size at a demolition site by calling him "Small fry" and "Half pint." Thomas tells him it does not matter as long as he is useful. Later, when Oliver is demolishing a building, Alfie hears a noise inside and goes to investigate. He finds a cat and her three kittens and rescues them before the wall collapses. The other machines cheer, even Max and Monty, and from then on Alfie never complains about being small.