The sisters Anna and Elsa enjoy their quiet life in Arendelle. Until one day Elsa is seized by a strange restlessness and a mysterious voice lures her into the forest. Together with Anna, Olaf, Sven and Kristoff, she sets off to investigate the mystery of the lure. Not only does the crew meet the people of the forest and other new companions on their adventurous journey, Elsa and Anna must once again stick together and stand up for each other with courage, trust and sisterly love.