The penguins' dream home is going to be amazing, with an ice rink, a helter-skelter and a swimming pool on the roof. However, the animal builders' apprentice, Donkey, is turning out to be a bit of a disaster. His bricklaying is a mess; he's a positive danger behind the wheel of a dumper truck, and his plumbing is a catastrophe. But who saves the day when a runaway bulldozer threatens to flatten all the builders' hard work? Donkey does! So that's what Donkey's good at: being super-strong!