It's Christmas Eve in Greendale! Julian would love it to be a white Christmas so he even asks for snow in his letter to Santa. Pat has a busy working day ahead and he's due to make an appearance at the Greendale party in the evening...as a very special surprise guest. While Julian and his friends use their ingenuity to sledge and build a snowman...without snow, Pat picks up a jovial, bearded stranger on his rounds who helps him make light work of all the deliveries before mysteriously disappearing. When Pat arrives at the Party, he discovers that Santa has already been. It's all very confusing...until Pat, Sarah and Julian come home to find the bearded stranger leaving presents under their tree. And before he says goodbye, the real Santa tells Julian that his present is outside. Pat opens the door to find Greendale covered in thick, sparkling blanket of freshly-fallen snow!