Have you wondered how your immune system protects you from germs like the flu? It's truly amazing Without your immune system, you would be sick all the time. Stu the Flu introduces Andy the Antibody and Willy the White Blood Cell, two close friends living inside your body, to tell the story of the battle between your immune system and Stu the Flu. You and your child will go on a unique and fun (and microscopic ) adventure into your body to learn...