A Tale of Two Sisters

S4, E1: In the season four premiere, a scared and confused Elsa finds herself in Storybrooke and creates a powerful snow monster for protection. With Robin Hood's wife, Marian, back in the picture, Regina wonders if her "happily ever after" with the former thief has been completely quashed; while on their honeymoon, Mr. Gold finds an intriguing object that makes him question whether or not he should officially give Belle control over the dagger that makes him The Dark One, and Hook is dismayed to discover that Emma seems to be avoiding him. Meanwhile, in Arendelle of the past, Anna discovers that her parents were on a quest that may have held the secret to containing Elsa's ice powers.