Anna, the sister of the queen Elsa, sets off on a dangerous and mysterious journey to bring back Elsa, who has run off because of causing an endless winter upon her home town. Anna must get through challenges and meet new friends, such as Olaf, an adorable talking Snowman, and face her charming boyfriend to save the kingdom from not only Hans, but from forever winter.

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 Elsa's powers in order to save their kingdom.