Anna and Elsa are invited to a harvest festival in the kingdom of Snoob! As they wonder about this faraway kingdom, they discover that Kai has a long-lost brother--in Snoob! This sets them on an adventure to reunite the two brothers . . . Join the Arendelle sisters, with Kai, Olaf, Kristoff, and Sven on a road to reunion, where surprises await at every twist and turn!