Harry loves macaroni and cheese, but when he gets sick, he can't eat it! He gets so sick that his parents take him to the hospital. The story then follows Harry (with his mom and dad) through the experience of going to the hospital. Harry doesn't like having to meet lots of new people, getting poked with needles, and staying the night in a strange place, all the while feeling sick to his tummy. But with his parents' comfort and the help of lots of doctors, nurses, and other people, Harry learns that the hospital doesn't have to be a big, scary place.