It’s Christmas Eve on Jeju Island and the film crew sets out for some last-minute gift shopping, leaving co-stars Evan and Kai home alone. Evan finds himself in trouble for eating the log cake meant for their Christmas dinner. The boys must race against the clock to replace the log cake and decorate the Christmas tree before everyone returns home. Faced with more mishaps along the way, Evan starts to feel the spirit of Christmas with the help of Kai.