The biggest Christmas secret ever

OK, so your mum's partner, Nick, has a big bushy beard, a thick red coat, a team of reindeer and just happens to be REALLY busy around Christmas Eve - what could that mean?! Harper and Will's lives are already full of festive wonder, but baby sister Yula is about to bring a whole new meaning to the magic of Christmas. Indoor snowflakes, naughty gingerbread biscuits and reindeer running wild spell Christmas chaos! And with the Elf and Safety Department on the lookout for any unexplained festive magic, it's up to their family to keep the biggest Christmas secret ever.