Cora and Hook face off with Mary Margaret and Emma in a race to secure the compass, which will point its holder to the portal into Storybrooke. But back on the other side, Regina and Mr. Gold, desperate to keep Cora out, put a plan into action that would kill anyone entering the portal - placing Mary Margaret's and Emma's lives in danger as well. Meanwhile, back in the fairytale land that was, Captain Hook travels to Wonderland and meets up with a vengeful Queen of Hearts.

Mr. Gold finds an unwilling test subject to see if a spell he has concocted will allow him to cross the border of Storybrooke -- without losing his memory -- and go in search of his son, Bae; Belle stumbles upon a vengeful Hook in the Storybrooke harbor whose main goal is to eradicate Rumplestiltskin; and Mary Margaret and David go house hunting in search of a bigger place to live. Meanwhile, in the fairytale land that was, Belle meets Mulan as the two set out to slay a fearsome beast called the Yaoguai, who has been ravaging the land.