Following the unexpected death of her parents; Elsa finds herself the sole ruler of Arendelle and mysterious powers begin to reveal themselves. Elsa starts to remember fragments of her childhood that seem to have been erased - pieces that include a familiar-looking girl. Determined to fill the void she has always felt; Elsa must take a harrowing journey across her icy kingdom to undo a terrible curse... and find the missing Princess of Arendelle.