Karla's parents are divorced and she lives with her mom, stepdad, brother and stepbrother. After arguments with mom, dad drinking again and no real X-mas in sight, she runs away from home. Will she be back for Christmas?
Ninna lives with her son Dennis in Præstø, Denmark, where she also works at the local barbecue. As Dennis turns 18 close to Christmas, Ninna throws a surprise party for him. Most surprised however, is Ninna herself, because in the midst of all the glory Dennis announces that he has found his own apartment and intends to move out from his childhood home. Ninna is now thrown into a major crisis, with December turning into a month in hell. The prospect of having to watch her son grow up and start living his own life is unmanageable, and she takes every conceivable and unimaginable means to save Christmas, the feast of hearts, and get her son home.
Way up north in Greenland lives 12-year-old Lucia with her mother and her father, who is best known as Father Christmas. Lucia is the first girl ever in Santa class at the international Christmas School. On the day that the present machine is supposed to start this year's present production, Lucia's best friend, Oscar, is accused of stealing King Winter's magical crystal that fuels the present machine. Claudia, Lucia's mother who has long been wary of the crude Oscar, tries to prevent Lucia from ruining her future career by defending the seemingly guilty boy. But Lucia is determined to fight injustice and escapes with Oscar to prove his innocence by finding the real thief. Soon they are facing the secret brotherhood of The Grey Brethren, who have sworn to destroy the crystal and end Christmas for good. Lucia realizes that there is more at stake than she thought. Lucia and Oscar have to fight the brotherhood for the crystal all the way into the dangerous Eternal Storm to save Oscar, Chr