Witch Hunt

"Witch Hunt" is the 57th episode of Once Upon a Time.

Summary
Emma arrives in Storybrooke with Henry and reunites with her friends and family, only to discover that no one remembers how they were transported back - or the past year they had spent back in the Enchanted Forest. But Emma is sure that someone in town is responsible for this new curse and teams up with Regina in an attempt to uncover their identity. Meanwhile, in the fairytale land that was during the past year, Regina, with the aid of Robin Hood, attempts to break into her castle, which has been overtaken by Zelena.

Trivia

 * The title card of this episode features Zelena, the Wicked Witch of the West, flying through the woods on her broom.

Production

 * The title of this episode was revealed by executive producer/co-creator Adam Horowitz, via his Twitter account, on November 24, 2013.

Gallery
Gallery of photographic stills released to promote the episode.