Plot summary
Dr. Jekyll succeeds in separating himself from Mr. Hyde, wishing to join the heroes in Storybrooke. Henry uses the black Holy Grail to banish magic while interrupting a confrontation between Emma, Regina, and Gold, inadvertently trapping the rest of his family in the Land of Untold Stories. After a pep talk from Emma, Henry gives a speech to New York citizens about believing in magic, and asks them to make wishes in the park's fountain. This opens a portal, bringing the heroes home. Jekyll gives Snow some of his serum for Regina, allowing her to separate from her Evil Queen persona and crush her heart.
Gold confronts Mr. Hyde, who promises him information on how to wake Belle in exchange for ownership of Storybrooke. Hyde arrives in Storybrooke along with some of his "friends". Back in New York, the Dragon is confronted by the manifestation of the Evil Queen, who takes his heart and declares war.
Credits
Adapted from Wikipedia contributors, Once Upon a Time season 5. HTML formatting and reference markers removed.