When Queen Elsa of Arendelle flees the kingdom, Ana finds herself scared and alone, surrounded by those who caused her only family to leave her. She knows she must figure out some way to get her sister back, but she has no clue where to begin. And all the while, there are dark forces at play which seek to over throw the kingdom. But suddenly, a group of four young heroes mysteriously come to the palace one night, claiming they can help. Ana has no other options than to trust them, so they go out in search of the queen. Meanwhile, Elsa is living on the North Mountain with a freedom that she never had before. She has no fear of hurting those she loves. But she soon begins to have nightmares of hurting her sister and her powers grow ever darker. Will this band of heroes be able to reach Elsa in time to turn her back to the light, or will she be consumed by darkness?