Jack is lost in the forest - a forest that his mum has told him is full of ferocious wild beasts! But the creatures that Jack meets there: a bear, a lion, an elephant, a crocodile, a wolf and a python, all seem perfectly friendly to him, even if they are a bit worried about these ferocious wild beasts he's been telling them about ...But then they hear a terrible roar...Who or what can it be?