Rumple returns with him a dark secret about Emma.
Can Emma and Regina outrun the Chernobug?
Rumple takes Cruella and Ursula to Storybrooke.
Regina's spell to free the fairies has unintended consequences.
Can Ursula and Cruella save Maleficent?
Mary Margaret threatens Ursula and Cruella de Vil.
Rumple tricks Ursula, Cruella, and Maleficent.
Blue tells Regina and Emma about the Author.
Rumplestiltskin rounds up Maleficent, Ursula and Cruella De Vil.
Regina and Robin must part ways forever to save Marian's life.
Belle finally comes to terms with Rumple's dark side and banishes him.
Elsa helps Anna prepare for her wedding to Kristoff.
Emma returns the heart Rumple stole from Hook.
Maleficent, Ursula, and Cruella use Belle to get the gauntlet from Rumple.
Henry finds a library full of blank story books.
Elsa and Anna return to their home in Arendelle.
Regina returns Marian's heart, bringing her back to life.
Elsa and Anna search for a way back home to save Arendelle from Hans.
Rumple says he's going to crush Hook's heart.
Hook begs Rumple not to harm Emma and the rest of Storybrooke.
Under the spell, Regina becomes the Evil Queen again.
Anna tells Emma the only way to break the spell is the kill Ingrid.
The spell reignites the feud between the Evil Queen and Snow White.
The Snow Queen makes the ultimate sacrifice to atone for her misdeeds.
Storybrooke celebrates the end of the Spell of Shattered Sight.
The spell brings out the worst in Snow White.
Emma uses Regina's hatred to destroy the Snow Queen's bracelets.
Regina returns to her old ways and becomes the Evil Queen again.
The Spell of Shattered Sight brings out the worst in Charming and Snow.
After nearly drowning with Kristoff, Anna is reunited with her sister.
As she prepares for the spell, Emma says goodbye to Killian.
The town prepares for the worst as the spell arrives.
Regina locks herself up to protect her loved ones during the spell.
Under Rumple's control, Hook captures the Blue Fairy in the Sorcerer's Hat.
Regina doesn't want Robin to see the bad in her.
Emma must imprison Mary Margaret and David during the spell.
Anna and Kristoff fight Hans as he tries to take over the kingdom.
Storybrooke prepares for the Spell of Shattered Sight.
After a night of passion, Regina shows Robin the Storybook.
Hook tells the truth in order to save Emma.
Rumplestiltskin makes Hook his pawn.
Emma's reunion with her family is cut short by The Snow Queen.
Elsa tries to stop Emma from giving up her magic.
After Anna puts Elsa in the urn, the Snow Queen gets revenge.
Robin and Regina find hope in a new page that might be from the Storybook.
Rumplestiltskin lures Emma toward the Sorcerer's Hat.
The Snow Queen wants to bring out the dark side in Anna.
Will Elsa believe Anna -- or the Snow Queen's lies?
After capturing Ingrid, Rumple reveals his plan to go after Emma.
Unable to control her powers, Emma accidentally hurts her son.
David and Mary Margaret consider what is best for Emma.
A desperate Emma turns to Rumple. Can she trust his motives?
After putting Henry in danger, Emma turns to Rumplestiltskin.
Elsa is furious with Anna for keeping the truth from her.
Robin is tired of fighting his feelings for Regina.
The Snow Queen pushes Emma until she snaps.
Cinderella, Aurora and Snow White take their babies to class.
Ingrid's beloved sister pays the price for her magic.
What does the Snow Queen really want?
Elsa & Emma want to know the Snow Queen's agenda.
Will Emma's magic be strong enough take down the Snow Queen?
Will Regina let Robin break his code for her?
Is Emma's power strong enough to capture the Snow Queen?
Robin tells Regina he can't stop thinking about her. Can they make it work?
The mirror brings out the dark side in Belle and she turns on Rumple.
Rumple uses the Sorcerer's Hat as leverage against the Snow Queen.
What does the Snow Queen want from Anna?
Emma and Elsa are shocked to learn what the Snow Queen is really after.
Anna thinks the woman claiming to be her aunt is up to something.
Elsa has a surprise for Anna when she returns to Arendelle.
Emma is stunned to discover how she knew the Snow Queen in the past.
The Snow Queen uses Anna to trap Elsa.
The Snow Queen warns Sidney that she's coming after Storybooke.
Regina and Emma work together to defeat the Snow Queen's beast.
Emma tries to make amends with Regina.
When Elsa hears Anna begging for help, will the sisters be reunited?
Hook struggles when his dark side comes out during a date with Emma.
Rumple tells Hook the truth about his dark side.
Good and evil forces fight over a magical hat.
Rumple needs Anna to gain access to the Sorcerer's Hat.
Anna uses Rumple's dagger against him.
Henry goes undercover at Mr. Gold's pawn shop.
Hook wants his hand back on the next episode of Once Upon a Time.
Anna makes a deal on the next episode of Once Upon a Time.
Emma tells Hook the real reason she's being distant.
Robin admits why True Love's Kiss didn't save Marian.
Rumple and The Snow Queen share a mysterious past.
Emma uses her magic to try to save Hook from the Snow Queen.
A man in the woods says he knows who's been freezing the town.
Something mysterious happens when Hans tries to capture Elsa.
Marian collapses on the next episode of Once Upon a Time.
Kristoff stops Elsa on the next episode of Once Upon a Time.
Emma encounters the woman who made the frozen wall.
Anna teaches Charming how to fight with a sword.
Trapped in Elsa's ice cave, Emma collapses from the cold.
David convinces Elsa she can melt the ice and save Emma.
Another woman in Storybrooke has powers like Elsa.
Elsa freezes Storybrooke on the next episode of Once Upon a Time.
Snow White snaps on the next episode of Once Upon a Time.
As Elsa walks to town and has a dangerous encounter with Sleepy and Grumpy.