Queen Elsa meets the mysterious winter spirit Jack Frost and must work with him when a magical threat spreads across Arendelle.

Anna trudges through the snow outside Arendelle when a sudden gust of wind scatters snowflakes everywhere. "Hey! What was—" She looks up and spots someone sitting casually on a tree branch with a crooked staff.Anna blinks. "Wait... are you floating?" She grins. "Okay I don't know who you are, but anyone who can make snow do that has to tell me how!"