This year, Father Christmas has invited the Jan van Haasteren family to celebrate Christmas together in his cosy mountain hut. He has sent everyone a personalised invitation for this special occasion. Really everyone? Or has he forgotten his arch-rival St Nicholas? Join the Family members on their journey to the snowy mountains somewhere in Europe as they get into absurd situations. Put on a warm jumper and puzzle through the humorous and chaotic story to find out if everyone arrives in time for Christmas. It will be an unforgettable adventure.