Le grand Grrrrr s'arrête devant une maison pour livrer un colis. Il sonne mais personne ne répond et la pluie commence à tomber. Il s'énerve et finit par détruire la maison. Un album sur l'impatience.

The Great Grrrrr works for an express delivery service. A monster on a mission, he must deliver a package to a cottage in the country. But, when the recipient isn't home, he becomes increasingly frustrated and then angry. Just when he has destroyed the cottage out of an explosive bout of rage, the homeowner shows up and everything changes. The Great Grrrrr learns to manage his anger issues and finds patience and perhaps a new perspective on life.