An uncontrolled outburst of magic leaves Princess Elsa of Arendelle deaf for the rest of her life. Guilt of harming her sister and her lack of hearing, forces her to lock herself inside the lonely comfort of her room. Afraid how rest of the world will perceive her, Elsa and her parents agree to hide her disability and powers from everyone else including her sister. But, months before the 21st birthday of Elsa, the king and the queen dies in a shipwreck. Still, struggling to keep her powers in check and afraid to face the world, Elsa abdicates her throne in favour of her younger sister, Princess Anna of Arendelle but refuses to state the reason behind her decision. After 3 years, Anna becomes the Queen of Arendelle, and falls in love with Prince Hans of the Southern Isles. Being more mature than Anna, Elsa refuses to bless their marriage, and things get sour between the sisters. Will Anna learn the truth about Elsa ? And if she does, will she accept Elsa for who she is ?