The calm life that seemed to be established in Arendelle is again under threat! Queen Elsa hears a strange but very persistent voice that calls her to go beyond the horizon and find out the answers to the questions that have long tormented her. Allowing herself to answer his call, Elsa awakens the spirits of nature, who drive all the inhabitants of Arendelle out of their homes. Now Elsa, Anna, Kristoff, Olaf and Sven have no choice but to follow the mysterious voice to save Arendelle. After all, if they do not reveal the secrets of the past, the kingdom has no future...