Lily and Joseph and the Hungry Hedgehogs

The Prickles family love to eat ants, worms and slugs but their cupboard is nearly empty. When Daddy and Grandad hedgehog can only find a handful of food their brave little hedgehogs James, Susan and Thomas leave home to find something to eat. Where have the ants, worms and slugs gone? Can the scary humans Lily and Joseph and their talking snails and cats help the hedgehogs find food?