Once Upon a Time

Hades wants a future with Zelena outside of the Underworld. Regina overhears this and enlists Cora's help to find a way to separate Zelena from Hades. However, Cora reveals a family secret that could change Regina and Zelena's lives forever.

Hades turns to the heroes to ask for help with getting Zelena back from Rumplestiltskin and Peter Pan. In return, he offers to take all their names off their tombstones. However, when Hook is still unable to leave, he and Emma must journey into the depths of the Underworld.

Emma, David, Regina, Robin and Henry return to Storybrooke and reunite with Snow, but still have to contend with Hades, who continues to deceive Zelena as he lays out his plan to use the Olympian Crystal to take over the town.

Regina reels from the death of Robin Hood. When the heroes discover Gold has stolen Hades' Olympian Crystal and tethered all of Storybrooke's magic to it, they set out to stop him. Henry decides he no longer can stand all the pain magic has caused his family, so he goes rogue, with Violet in tow. Meanwhile, Zelena, Snow, David, and Hook attempt to open a portal that will return Merida and the other Storybrooke guests to their homes.

With the possibility of magic being destroyed and the fate of Storybrooke hanging in the balance, Emma and Regina race to track down Henry before Gold can find him. Regina continues to struggle with her frustrations over her former evil self and, elsewhere, Snow, David, Hook, and Zelena are imprisoned.

As the heroes set out to stop Hyde, Emma develops a mysterious side effect, and Storybrooke becomes a haven for refugees from the Land of Untold Stories. Meanwhile, Regina and Zelena embrace their newfound sisterhood by becoming roommates, while Rumple tries to free Belle from the sleeping curse. In flashback, Jafar confronts an afflicted Aladdin in Agrabah, and a secret about the Savior is revealed.

When a mysterious man from the Land of Untold Stories arrives in Storybrooke, David and Snow work together with Regina to neutralize the threat. Belle seeks Hook's help finding a safe place to hide away from her husband, Mr. Gold. Elsewhere, the Evil Queen continues to try to win Zelena over to her side, while Emma resumes her therapy sessions with Archie and shares her terrifying vision of the future.

As Storybrooke continues to welcome the new arrivals from the Land of Untold Stories, families, friends and enemies are reunited once again. When Cinderella searches for her step-family, intent on settling their unfinished business, Emma, Hook and Henry scramble to help her before it's too late. Meanwhile, Regina attempts to bribe Mr. Hyde for information about how to defeat the Evil Queen, and Snow helps Dr. Jekyll find a laboratory for his work.

The Evil Queen and Hyde continue on their quest to steal Dr. Jekyll's serum; Snow looks forward to her first day back as a school teacher; and while Emma looks forward to Hook moving in with her, Hook finds himself trying to protect Belle from Mr. Gold, who has made sure she can't leave the confines of the pirate ship.

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. In Storybrooke, the Evil Queen tricks Hook and the Charmings and forced Emma to reveal her secret in an effort to divide the family.

Emma tries to convince Aladdin to work with Jasmine to help Agrabah, while Regina teams up with Snow and David to free Archie from Zelena. Meanwhile, in the past, Hook finds himself kidnapped by the mysterious Captain Nemo and held captive aboard his submarine, the Nautilus.