The film begins with a crew of ice harvesters collecting ice from a frozen lake in the Scandinavian mountains (Frozen Heart). Among them is an seven-year old orphan boy named Kristoff, and his reindeer calf Sven, who try to emulate the harvesters but are always shut out. After collecting enough ice, the harvesters load it onto their sled and depart, headed for the town of Arendelle.
