Practical Pig, Fiddler Pig and Fifer Pig are three brothers who build their own houses with bricks, sticks and straw respectively. Practical Pig warns his brothers to build their house with "War Savings Certificate" bricks so that the house will be a solid defence against the marauding Wolf. Fifer and Fiddler ignore him and continue to play, singing "Who's Afraid of the Big Bad Wolf?".