When a young zebra accidentally causes a huge stampede, he finds himself lost and alone. But he knows he'll find home again if he just looks out for his mum's distinctive, zig-zag striped bum. Along the way, he'll encounter big ones, small ones, spotty ones, tall ones, hairy bums, smelly bums, scaly ones and old ones, belonging to huge hippos, very tall giraffes, lazy lions and many more animals besides.