Storybrooke's inhabitants brace themselves as Greg and Tamara activate the trigger within the curse.
Mary Margaret, David and Emma embark on a search when Regina and some magic beans go missing.
Hook helps Regina with a plan to transport her and Henry back to Fairytale land; Emma grows increasingly suspicious of Tamara; the queen asks Rumpelstiltskin to transform her so that she can kill Snow White.
Mr. Gold asks David for help jogging Belle's memory.
While off on her own to deal with what happened with Cora, Mary Margaret comes across an entirely wooden August; Neal invites his fiancee to Storybrooke.
David, Emma and Mr. Gold try to protect Mary Margaret from a vengeful Regina; a man and his son find their way into Storybrooke.
Cora and Regina try to overpower Mr. Gold; dark magic tempts Mary Margaret; Rumplestiltskin offers his services to Cora.
When Mary Margaret learns of Cora and Regina's plan for the dagger, she resolves to find it first; Mr. Gold continues his search for Bae; the Blue Fairy offers Snow White an enchantment to save her mother.
Emma, Henry and Mr. Gold search for Gold's son in New York; Hook, Cora and Regina look for one of Rumplestiltskin's most precious possessions.
Cora brings the giant to Storybrooke, where he unleashes vengeance on the town; Emma and Henry go with Mr. Gold to search for his son; Greg asks Belle what she saw on the night of his accident; Anton the Giant befriends humans.
A stranger may be a threat to the true identity of the townspeople; Cora tries to reunite with Regina.
Mr. Gold tries to use an unwilling test subject to see if his spell works; Belle runs into vengeful Capt. Hook; David and Mary Margaret look for a bigger house.
When Regina is accused of murdering a beloved fairy-tale character, Emma thinks she is innocent; Prince Charming and Snow White plan the evil queen's execution.
Hook and Cora face off with Emma and Mary Margaret in a race for the compass; Mr. Gold and Regina plan to kill anyone who enters the portal.
Cora tries to steal the compass from Emma and Mary Margaret; Regina and Mr. Gold must put David's life in danger in hope that he will contact Mary Margaret.
Ruby's fear about turning into a wolf is confirmed when she becomes the prime suspect for a vicious murder; Leroy finds treasure in a Storybrooke mine that could help Emma and Mary Margaret.
The fairytale characters must contend with magic in their quest to find a way home, as new fairytale characters are revealed, old friends are revisited, and some we've trusted will turn against their own.
Emma Swan wonders if the residents of Storybrooke, Maine are somehow actual characters from legendary children's tales. Parallel worlds unravel in this modern take on classic fables where a curse has trapped famed storybook characters in our world.