Unfriendly mermaids threaten those searching for Henry in Neverland.

Peter Pan offers Emma a map that will help her find Henry.

Hook suggests tracking down Tinker Bell to help locate Pan's hideout.

Mr. Gold decides to confront Pan.

Hook brings the ailing David with him to find the sextant that might help them decipher a map out of Neverland; Killian Jones and his brother sail off to find an a plant in an uncharted land.

To repay Ariel (JoAnna Garcia Swisher) for saving her life, Snow White helps her get acquainted with Prince Eric; Mr. Gold and Regina begrudgingly agree to work together to take down Pan.

Mr. Gold and Regina send Ariel back to Storybrooke with an item that will allow Belle to locate a hidden artifact that could help take down Pan. But unbeknownst to them, two men have broken into the town with the intent to stop them at all costs.

Pan tries to convince Henry that he can save magic and Neverland; a young Rumplestiltskin receives a magical item that could give him a fresh start with his father.

The race to stop Pan is on as Henry's life hangs in the balance; with Mr. Gold's help, Regina decides to adopt a baby.

Pan's plan threatens the citizens of Storybrooke's joy over Henry's return; Snow and Charming spend their honeymoon searching for a mythical being that could stop Regina.

The residents of Storybrooke race to stop Pan from placing another curse on the town.

Hook goes to New York to help Emma regain her memories so she can help her fairy-tale friends and family.

Emma arrives in Storybrooke with Henry and reunites with her friends and family, only to discover that no one remembers how they were transported back--or the past year they had spent back in Fairy Tale Land. But Emma is sure that someone in town is responsible for this new curse and teams up with Regina in an attempt to uncover their identity. Meanwhile, in Fairy Tale Land during the past year, Regina, with the aid of Robin Hood, attempts to break into her castle, which has been overtaken by the Wicked Witch.

While Emma, David, Regina and Hook continue their search for the Wicked Witch, she, in turn, is planning a dark surprise for David. And Zelena's prisoner is powerless under her watch as she plots her next course of action against the townspeople. Meanwhile, in the Fairy Tale Land that was in the previous year, Prince Charming stumbles upon Rapunzel, who is trapped inside a tower, and must help her confront her fears in order for her to be free.

Neal finds himself back in Storybrooke and yearns for a way to reconnect with his son Henry, whose memories of his father are gone, while also trying to find his own father, Rumplestiltskin, whom he has just learned is alive but missing, and Regina discovers a possible connection with Robin Hood. Meanwhile, in the Fairy Tale Land that was over the past year, agonizing over the death of his father, Neal--with the help of Belle and enchanted candelabra Lumiere--attempts to find a magical solution to bring back Rumplestiltskin from the dead.

With Rumplestiltskin as her slave, Zelena challenges Regina to a fight to the death and shocks the Evil Queen with the reveal of their familial connection, and the town lays Neal to rest. Meanwhile, back in the past in the land of Oz, a jealous Zelena asks the Wizard to send her to Fairy Tale Land after discovering that she has a sister, Regina, and that Rumplestiltskin is training her to become a powerful force to be reckoned with.

Ariel returns to Storybrooke and pleads with Hook to help her find Prince Eric, who never returned to the town when the new curse was invoked. Emma agrees to let Regina teach her how to use magic so that she can help defeat Zelena, and Mary Margaret and David try to prove that they can be just as much fun as Hook is with Henry--who thinks they are boring. Meanwhile, in Fairy Tale Land during the past year, an angry Ariel confronts Hook over her missing Prince Eric, who she assumes was kidnapped and possibly killed by the swarthy pirate. But when Hook confesses that the Jolly Roger has been stolen and Eric is most likely the thief's prisoner, Ariel unknowingly provides him with a clue as to who the culprit

After Zelena steals Regina's heart, Regina casts a spell so that she can speak across the realms to her dead mother, Cora, to discover the truth about why she abandoned Zelena, and Belle stumbles across what Zelena's ultimate end game is. Meanwhile, in the Fairy Tale Land that was, young Cora is duped by a man claiming to be a prince and finds herself alone and pregnant. But a chance meeting with a real prince could lead Cora to the royal life she's always craved, but she must keep her pregnancy a secret or risk losing everything.

Highlights from some of ABC's most exciting dramas.

A series recap includes Mary Margaret and Emma's separation from their new-found family, Regina's plan to become The Dark One and Henry's kidnapping.

Prince Phillip and his companion realize they will be facing a deadly foe.

Regina continues to seek a way to regain her powers.

Emma and Mary Margaret try to find a portal back to Storybrooke.

Belle threatens to leave Mr. Gold if he doesn't change his ways.

Regina tries to refrain from using her magic to regain Henry's trust.

Emma follows Capt. Hook up a beanstalk to find a magical compass.

Ruby's fear about turning into a wolf is confirmed.

Cora tries to steal the compass from Emma and Mary Margaret.

Hook and Cora face off with Emma and Mary Margaret for the compass.

Regina is accused of murdering a beloved fairy-tale character.

Mr. Gold tries to use an unwilling test subject to see if his spell works.

A stranger may be a threat to the true identity of the townspeople.

Cora brings the giant to Storybrooke, where he unleashes vengeance.

Emma, Henry and Mr. Gold search for Gold's son in New York.

Mary Margaret learns of Cora and Regina's plan for the dagger.

Cora and Regina try to overpower Mr. Gold; dark magic tempts Mary Margaret.

David, Emma and Mr. Gold try to protect Mary Margaret from vengeful Regina.

Mary Margaret goes off on her own to deal with what happened with Cora.

Mr. Gold asks David for help jogging Belle's memory.

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.

Mary Margaret, David and Emma embark on a search when Regina and some magic beans go missing.

Storybrooke's inhabitants brace themselves as Greg and Tamara activate the trigger within the curse.

Characters' back stories and secrets are revealed.

Emma's life turns upside down when she is visited by a strange guest.

Regina tries to push Emma out of Storybrooke and Henry's life.

Emma talks Mary into reading to a coma patient in the hospital.

Emma tries to help a pregnant woman get away from Mr. Gold.

Sheriff Graham makes Emma a deputy.

Sheriff Graham is caught in a lie; Prince Charming's destiny is altered.

One of Storybrooke's residents starts to remember fairytale life.

Emma runs for public office, leading Regina to indulge in dirty politics.

The evil queen has Hansel and Gretel steal an artifact from a blind witch.

David and Mary Margaret continue to struggle with their feelings.

David and Mary Margaret continue to meet secretly.

Mr. Gold's house is robbed, Emma suspects he is planning to seek justice.

David decides to tell Kathryn about his relationship with Mary Margaret.

Mary Margaret and Leroy help nuns sell candles at the Miner's Day festival.

Emma gives Ruby a job as her assistant.

Emma arrests Mary Margaret, so Mary hires Mr. Gold as her attorney.

Emma is kidnapped by a mad man with an affinity for hats.

Emma keeps searching for evidence to prove Mary Margaret's innocence.

Mr. Gold tries to expose August's true identity.

August takes Emma on a journey that will show her how to beat Regina.

Regina works on a plot that could rid her of Emma permanently.

Emma and Regina work together to save Henry's life.