Groblins tend to keep themselves to themselves and very few people even know they exist. Grum has been thrown out of his home by his two brothers and has to prove that he's brave before they will let him back. Grum decides that the best way to show them he's brave is to go and find a human and bring it back home. Along the way he meets Burly, a mellow kind of bear, who takes him under his paw and together they go to town! They soon get into trouble and along the way discover cup cakes, carnivals, kittens and what humans are really all about. But will Grum manage to convince his brothers that he's brave?