Summarizes the series up to this point.

Elsa finds herself in Storybrooke scared and, fearful of the intentions of its residents. She creates a powerful snow monster for protection. Meanwhile, in Arendelle in the past, Elsa's sister Anna's wedding to Kristoff nears. Anna discovers that their parents were heading to a mysterious destination in a quest that may have held the secret to containing Elsa's Ice powers. Against Elsa's wishes, Anna wants to finish their journey to find out what they were looking for.—Christopher Ebert