When Mum got a new baby, Phoebe got a new digger. And when Mum is busy with the baby, Phoebe and Digger are busy, too. Finally, Mum says it's time to go to the park, the one with real dirt - and while Mum and the baby sit on the boring bench, Phoebe and Digger happily build and knock down and dig things up. That is, until a big girl comes by, a kid with mean teeth and grabby hands. Phoebe tries everything she can, but what if she never gets Digger back?