Calamity Crow goes on a camping holiday. He runs into several small mishaps but is determined to sleep outside. At the same time Percy Post travelling around in the city delivering the mail, he is a bit depressed and wishes that he were a real hero instead of a postman. In the middle of the night it suddenly starts burning at Calamity Crows camp. Percy Post, who is going with a package to the neighbouring village, hears Calamity Crow call for help. Now it's urgent! Will Heroes of the City make it in time?