When Peter and Emma discover that they have forgotten to buy presents on Christmas Eve, they again find themselves forced to ask Frank – one of Christmas Thieves’ bungling thieves – and his roommate Tony, to babysit Liam and Olivia. This is just the beginning of a new adventure that will see the characters struggling with a strange elf who has lost his memory following an improbable accident, after being sent to help Santa Claus in trouble with the delivery of gifts.