A magical door opens and starts sucking all the snow into the portal.
In The Characters' Past
In the Enchanted Forest, Belle opens up a cabinet when Rumplestiltskin surprises her, having returned early from Camelot. He claims to have been testing her to see what she would do with him gone. He then presents Belle with a glove that can detect the weakness in a person. He says for most people weakness is who they love and that will point him in the right direction, thus the use of the glove. Later on Belle is serving tea to Rumplestiltskin while explaining why he collects items, only to send Belle out to wash and dry his laundry. Belle then spots a dalmatian puppy and follows it, only to be lured into a trap.
As Rumplestiltskin searches for Belle in the forest, a sand dollar falls from the sky, and it opens up a hologram of Belle, who she says he has to bring the gauntlet from Camelot to trade for her or else she’ll be killed. Rumplestiltskin, having looked up in the sky at the crow who sent him the sand dollar, is aware of who sent him the message. When he reaches the caverns by the ocean, Rumplestiltskin brings the gauntlet to the meeting point. Belle runs up to him but she’s all tied up, and Maleficent appears, demanding the gauntlet. Rumplestiltskin uses his magic and chokes her, but she's brought along company: Ursula (who wraps her tentacles around Belle), and Cruella De Vil. Rumplestiltskin threatens them all and Cruella tells Ursula to crush Belle’s heart. As Ursula tightens her tentacles, Rumplestiltskin throws the gauntlet to Cruella then lets Maleficent go. The women say they’ve lived too long in a world where the heroes always win and the gauntlet will change that. They leave Belle and disappear. When Belle asks why he did it, Rumplestilskin refuses to admit he cares about her but says he’s the only one allowed to crush her heart.
It was later revealed that Rumplestilskin had made a deal with the three witches, and took back the gauntlet, saying it was a ransom not a deal. Cruella says it won’t do him any good since villains never get a happy ending, but Rumplestiltskin says he’ll win and will win alone.
With Ingrid now dead, Elsa brings down the ice barrier, but Emma knows that the spell is still in effect as she touches the barrier that is along the town limits. Anna then tells Elsa that they really need to leave Storybrooke: she tells her sister that Arendelle was taken over by Hans and his 12 brothers, so they ask Emma to help find a portal. When Hook informs Gold of this, Gold (using Hook's heart to see how Hook feels by partially crushing it) tells Hook that he knows Anna will interfere because of what she did to him back in the Enchanted Forest, so he wants Hook to keep Anna from finding out. Gold then says that as soon as he and Belle leave for New York City, he will kill Hook when the evening comes. Gold then goes to his bedroom to wake up Belle to tell her that he plans to surprise with a trip to New York City, which was followed by bringing Hook with him to the mansion, where he tells Hook that the place actually belonged to The Sorcerer. With help from the magic enchanting broom, they see the portal materialize. Moments later, Hook returns to tell Emma about the portal, but in actuality, Gold is using Hook's heart to feed the lines to Hook so he can make Emma believe his story, giving Emma suspicious vibes about Hook, even after seeing his hand shaking.
Back at the shop, Belle is packing up for the trip when Henry arrives to help his step grandmother. When Belle tells Henry to find another suitcase, he sees one and pulls it from the top of the cabinet and ends up dropping it. Among the items falling includes the gauntlet, which bring back memories for Belle. At the same time, Emma, Mary Margaret, and David arrive to the mansion to make sure Anna, Elsa, and Kristoff make it back to Arendelle through the portal door. As they thank the three, especially Emma, Anna tells the three that she wanted to thank Hook and Gold, only to have David mentioned that Gold was once Rumplestiltskin, and Anna tells them that she knows of him from their past encounter; Emma discovers that Gold had been using everyone and he has not changed. As they race to the clock tower, Gold has Hook watch him put his plan into action by placing the hat into position and it is released. When Emma and Mary Margaret arrive to stop him, Gold freezes them and then attempts to crush Hook's heart, only to discover he can not crush it: Belle has the real dagger and the gauntlet glove. She uses the items to force Gold to give Hook's heart back to him and unfreeze Emma and Mary Margaret. Belle then orders Gold to send them to the town limits, where she demands Gold to explain his actions as to why he chose power over love, even if meant sacrificing one thing so they can be together. Gold tried to apologize, but Belle refuses to believe him and that he will never change, and uses the dagger to banish Gold from Storybrooke. As Gold is forced out of the town, he cries out for Belle as she cries over what she did to him.
In between the events, Regina and Robin were able to wake Marian up from her ice curse, and later on thanked Regina for saving her even though she was aware that Robin still has feelings for her and vice versa; Regina tells Marian that she wants Robin to be happy for Roland's sake. However, as Regina tells Robin that he needs to be with Marian, the spell quickly resurfaced to freeze her heart. Regina tells Robin that in order for Marian to live, she must cross the town line and enter our world (and along with it, will no longer be able to return to Storybrooke), meaning the spell would not be able to harm her, but at the same time she tells Robin that both him and Roland have to accompany her. A reluctant Robin eventually gives in. As he, along with Marian and Roland, leaves Storybrooke, Robin gives Regina a final kiss before he leaves with his family to start their new life and identities. Also watching this was Gold, who tells Regina about the fairy tale book and that he doesn't know who was the author, but wishes her the best in finding her happy ending.
Later that evening, Emma places Hook's heart back in and they embrace and kiss, then she joins Regina for a drink at Granny's. Henry arrives to tells the two that he found a secret place in the Lakeside mansion. Henry pulls a wall sconces on a wall rotation and the wall opens to reveal a secret library that contains with full of blank potential storybooks, all with a cover similar to the fairytale books. With this revelation, Emma joins Henry and Regina in tracking down the author.
Now that Elsa and Anna are back in Arendelle, Elsa, who has reclaimed the kingdom from Hans, is ready to help Anna prepare for her wedding to Kristoff. As Anna puts on her gloves, she shows Elsa a painting of their mother and aunts that she found hidden away in the East Wing of the castle. Then, Elsa walks Anna down the aisle.
In New York City
Six weeks later in New York City, Gold pays a visit to an aquarium, where he has a meeting with a fish feeder, who is revealed to be Ursula. He tells her that he wants to get his happy ending, but the "heroes" stand in his way. He then tells Ursula to get ready and plans to pick up two more individuals (Cruella and Maleficent) to plot their scheme. He tells her that he realized that the villains will always lose, and that the only way to win is to change the game. It also turns out that Gold has someone in mind to help change the outcome; when Ursula asks who this is, Gold tells her that he’s known as "the Author".