Snow and Charming make a tragic decision that will haunt them.
Hook finds out what Ursula knows about Gold's endgame; Regina fears for Robin Hood's safety.
Regina must prove she's willing to get her hands dirty in order to infiltrate the Queen of Darkness.
The Charmings are pawns of the Queens of Darkness.
Gold reunites the Queens of Darkness.
A one-hour special that pulls back the curtain and takes viewers behind the lights and cameras to the fantastical worlds of "Once Upon a Time."
In the Winter Finales, the heroes pick up the pieces in the wake of the Snow Queen's spell.
The Snow Queen's spell has the residents of Storybrooke at each other's throats.
Storybrooke resident prepare for the spell of shattered sight.
In part 2, Hook tries to stop Emma from giving up her powers.
In a special two-hour episode, The Snow Queen attempts to pit Anna and Elsa against each other and Regina's quest goes unexpectedly.
Emma captures the Snow Queen and Ingrid discovers her ice powers.
Emma has no memory of the snow queen ever being her foster mother.
Regina teams up with Emma to search for Snow Queen; Mary Margaret and David prepare for date night.
Hook asks Mr. Gold to reattach his hand before he goes on a date with Emma.
The town blames Elsa when a spell is cast on Marian; Mary Margaret struggles to find balance.
Startled by Emma, Elsa accidentally traps both of them inside an ice cave.
In the season premiere, Elsa finds herself in Storybrooke.
ABC invites new and devoted "Once Upon a Time" viewers to take another look at this popular fantasy series in anticipation of the exciting fourth season premiere.