Park Jimin is happy that the holidays are coming. After their concert in America, he's looking forward to kickback and rest for the holidays. Then, He's invited to come back to his dance academy in Busan for their first big holiday recital! He looks forward to reconnecting with his former instructors and teaching the new dance students. Being back home is going to be a blast! So why is it that the songs keep going awry? And who are those weird christmas carolers with the masks? Why doesn't anyone wanna go upstairs? What's with that giant nutcracker appearing literally EVERYWHERE?!?! Suddenly the 12 days before Christmas seem more like a countdown to terror than a countdown to fun. Will Jimin and his dance buddies survive?