Today is the perfect day. The weather is not too hot or too cold and the children play outside and have fun. Who would want to stay inside on such a warm and sunny day? At least, that's what Mr. Giant thinks. Mr. Giant does not want to miss out on the perfect weather, so he pretends he isn't sick and doesn't have a cold. A group of children who have multiple encounters with Mr. Giant can see right through him.

Mr. Giant, You Are Sick, teaches through silly, strange occurrences and excuses, that it is okay to admit when you are sick and to stay home when you don't feel okay. Sometimes you will have to stay inside, even if you don't want to, so you don't get anyone else sick, or worse, make anyone sicker than you.