A bond of sisterhood changes forever after Gold instructs the Evil Queen to kill Zelena. Meanwhile, a sacrifice made by Belle affects all of Storybrooke.
Emma and Regina formulate a plan to trap the Evil Queen in a prison of their own making, while Snow and David adjust to life without each other.
In Storybrooke, the Evil Queen threatens to destroy the town and everyone in it unless Snow and David surrender their hearts.
Emma tries to persuade Aladdin to help Jasmine save Agrabah; the Evil Queen makes Henry grow distrustful of Hook.
Princess Jasmine recruits Aladdin to help her recover a secret weapon capable of breaking Jafar's hold on the Sultan and saving the city from ruin.
The Evil Queen and Hyde continue on their quest to steal Dr. Jekyll's serum.
As Storybrooke continues to welcome the new arrivals from the Land of Untold Stories, families, friends and enemies are reunited once again. Meanwhile, Cinderella searches for her step-family.
When a mysterious man from the Land of Untold Stories arrives in Storybrooke, David and Snow work together with Regina to neutralize the threat.
New Season: The heroes face off against a dangerous new enemy as Emma comes to terms with what it means to be the saviour, and Rumple enters Belle's dreamscape.