This heart warming tale unfolds in an enchanted wood called Willow Grove. Here lives a charming, determined little robin called Lucy Pebble. All the robins in Willow Grove excitedly await the arrival of the new fledglings. There is much chatter and anticipation as the long wait finally comes to an end. However, as each day dawns and eventually all the fledglings are born, only one egg does not hatch. It is the Pebble family egg.