Hook makes a deal and Regina searches for Marian's cure.
After Emma asks Hook out on a real first date, Hook visits Mr. Gold and asks for his hand to be reattached so that he can embrace her with both hands. But magic always comes with a price. Henry and Mary Margaret try to offer hope to Regina when she becomes frustrated over not being able to find a cure to save a frozen Marian, and Will Scarlet attempts to break into the Storybrooke library to find a special book. Meanwhile, back in the Fairy Tale Land that was, Rumplestiltskin is after a magical box that the Sorcerer's apprentice is guarding, and he may use Elsa's sister Anna to help him get it.
The town blames Elsa for casting an icy spell.
When an icy spell is cast on Marian, which will ultimately freeze her heart and kill her, the Storybrooke residents place the blame on Elsa. Plus, Regina teams up with Henry to try and discover who the author of the fairy tale book is. Meanwhile, in Arendelle of the past, Elsa and Kristoff set off to stop Hans from attempting to take control of the kingdom.
Emma gets trapped in an ice cave with Elsa.
Elsa is startled by Emma and accidentally traps them both inside an ice cave, with the frozen temperature placing Emma's life in peril. Regina secludes herself away from the town and Henry, which saddens her son. And with the townspeople considering Mary Margaret their leader, she faces her first leadership task in trying to restore the town's electricity.
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