Mandy Hope loves animals more than anything else. She knows quite a lot about them too; both her parents are vets and Mandy helps out in their surgery, Animal Ark. Dorian the donkey is about to be homeless. Andi, his owner, doesn't want to give him up. But her family is moving into a smaller house - and there's no room for a donkey there. But the clever donkey has other ideas.... Can Mandy help her stubborn old friend?