Olaf and The Nightlights Frozen Adventure

Its winter and Arrendale is preparing for Christmas and the hatching of the dragon eggs. this is Hiccup's first Christmas and Elsa is excited that he gets to spend it with her. Even though it's a time for family, Hiccup feels like it's his fault that Elsa and Anna don't have any family traditions. Olaf and the night lights decide to take things into their own hands or paws and go in search of family traditions. With the help of Sven, what could possibly happen?