Hook leverages his complicated history with Ursula to find out what she knows about Gold’s endgame. Gold and the Queens of Darkness torture August for information about the Author as Emma, Mary Margaret and David race to find them. Regina grows concerned for Robin Hood’s safety while she struggles to maintain her cover with the villains. In a Fairy Tale Land flashback, when a restless young Ursula enlists Hook’s help to run away from home, she soon learns it isn’t wise to trust a pirate.

Emma, Snow, David, Regina, Robin, Henry and Hook continue to search for a way to free everyone from the Underworld. At the mercy of Hades, Gold creates a portal to Storybrooke, which transports Belle, Zelena and Baby Hood to the Underworld. While Zelena and Regina get into a sibling squabble, Belle is reunited with Rumple only to learn some tremendously shocking news that will change her life forever. Meanwhile, Snow and David hopelessly attempt to send a message from the Underworld to their son, Neal. In flashbacks, Hades learns about Zelena’s very special spell and pays her a visit in Oz with the intention of striking an alliance, but finds himself with more than just a partner in crime.

As Storybrooke continues to welcome the new arrivals from the Land of Untold Stories, families, friends and enemies are reunited once again. When Cinderella searches for her step-family, intent on settling their unfinished business, Emma, Hook and Henry scramble to help her before it's too late. Meanwhile, Regina attempts to bribe Mr. Hyde for information about how to defeat the Evil Queen, and Snow helps Dr. Jekyll find a laboratory for his work.

When Hook finds himself trapped in another realm along with the Nautilus and her crew, he races to return to Emma before Gideon can execute the rest of his plan. In Storybrooke, Regina and Snow take Emma out to get her mind off Hook's disappearance. And in a flashback to Agrabah, Jasmine befriends Ariel, and together they set out to locate Prince Eric as the threat from Jafar intensifies.

Henry wakes up in a strangely changed Storybrooke where Emma is a mental patient and the rest of his family has disappeared.

Victoria strikes a deal with Weaver in an attempt to free herself from jail and wake Anastasia, but the cost of saving one life could mean the loss of another. In a flashback, we learn Lady Tremaine’s surprising connection to another classic fairytale when Mother Gothel offers to help her family. Meanwhile, Jacinda and Nick share an exchange that could alter her future with Henry.

As the residents of Hyperion Heights celebrate the breaking of the curse, Henry is visited by Wish Rumple, who’s hatched an evil plan to use Ella and Lucy to keep Weaver from destroying the Dark One powers. In order to stop him, Henry, Roni, Weaver and Rogers must travel to the Wish Realm, home to versions of some of our most beloved and fearsome characters. In a flashback, a discouraged Young Henry is visited by Wish Rumple and offered a deal that could have tragic consequences.