While things begin to heat up between Regina and Robin Hood, Zelena threatens to kill Henry if Hook - whose lips have been cursed by her - doesn't proceed with kissing Emma, an act that would drain all of her magical powers away. Meanwhile, back in the fairytale land that was during the past year, Snow and Charming go in search of Glinda, the Good Witch of the South, to see if she can help them defeat Zelena, and the curse that will ultimately send the fairytale characters back to Storybrooke is cast... but from an unlikely source.