Set three years after the events of the first film, the story follows Elsa, Anna, Kristoff, Olaf and Sven on a journey beyond the kingdom of Arendelle to discover the origins of Elsa's magical powers and rescue her kingdom after a mysterious voice tries to call Elsa. Anna, Elsa, Kristoff, Olaf and Sven leave Arendelle to travel to an ancient, autumn-bound forest of an enchanted land. They set out to find the origin of Elsas powers in order to save their kingdom.

Source: SolarMovie