Upon discovering Cora and Regina's plan to find and take possession of Rumplestiltskin's dagger, Mary Margaret, with the aid of David and Mother Superior, makes it her mission to find it first; and while Mr. Gold continues his quest in New York to reunite with son Bae, Hook devises a plan to rid himself of a crocodile. Meanwhile, in the fairytale land that was, the Blue Fairy offers Snow White an unconventional enchantment that could help save her dying mother, Queen Eva.

Emma, David and Mr. Gold must protect Mary Margaret against Regina, who is out for revenge and has made it her mission to kill Mary; and Henry, fed up with all of the feuding, devises a plan to put an end to magic. Meanwhile, Regina discovers that a father and son have somehow found their way into her allegedly undetectable town as she and the fairytale characters deal with the effects of the newly cast curse 28 years prior.