Tension runs high as Hook's ship sets sail for Neverland to rescue Henry, Neal travels to Rumplestiltskin's castle with Mulan, and Henry finds himself on the run from the Lost Boys after Greg and Tamara are ambushed.

Emma meets Peter Pan, who gives her a map that will reveal Henry's whereabouts as soon as she accepts her true identity, while flashbacks show the Evil Queen present Snow with an offer, which Charming does not want her to take.

To find Pan's hideout, Hook suggests tracking down Tinker Bell, who has a bitter past with Regina, and Robin Hood and Mulan help Neal get to Neverland.

Gold is reunited with Neal, as flashbacks show Rumplestiltskin go in search of a missing Baelfire, who has followed a mysterious figure who steals away children with his music.

Hook tries to help save David's life as the dreamshade takes its effect, as flashbacks show Hook's first visit to Neverland along with his brother.

Mary Margaret, Emma, David and Hook attempt to rescue Neal and Gold and Regina begrudgingly agree to work together to take down Pan, as flashbacks show Snow White help Ariel get acquainted with Prince Eric.

Gold and Regina send Ariel to Storybrooke to help Belle locate an artefact that could help take down Pan, while Emma, Neal and Hook attempt to find Dark Hollow in order to capture Pan's shadow.

As Pan leads Henry to a cave, Emma and the others race to save him, as flashbacks show when a young Rumplestiltskin was given a magical item that could help him make a fresh start with his father.

As Henry's life hangs in the balance, the race is on to stop Pan from gaining full power from the heart of the truest believer, as flashbacks show when Regina first adopted Henry.

As Hook's ship returns to Storybrooke, a well-hidden Pan puts a new plan into motion, while flashbacks show Snow and Charming go in search of a mythical being that could stop the Evil Queen cold in her tracks.

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

Everyone returns to the Enchanted Forest, except for Emma and Henry, who now live in New York and remember nothing of their time spent in Storybrooke.

Emma works with Regina to find out who took everyone's memories from the past year, as flashbacks show the Evil Queen and Robin Hood attempt to break into her castle, which has been overtaken by the Wicked Witch.

As the hunt for the Wicked Witch continues, she sets a plan for David into motion, as flashbacks show Charming encounter Rapunzel and assists her in facing her fears.

Neal finds himself back in Storybrooke, as flashbacks show Baelfire and Belle attempt to bring Rumplestiltskin back from the dead.

After Neal is laid to rest, Zelena challenges Regina to a fight to the death, as flashbacks show Zelena's past and the reason behind her hatred for Regina.

Regina instructs Emma in magic and Ariel arrives in Storybrooke looking for Eric, as flashbacks show Ariel and Hook's encounter during the missing year.

After Zelena steals Regina's heart, Regina casts a spell to discover the truth about why Cora abandoned Zelena. Meanwhile, Belle discovers Zelena's plan.

Zelena threatens to kill Henry if Hook doesn't kiss Emma and take her magic away, as flashbacks show when the curse to send everyone back to Storybrooke was cast during the missing year.

The residents of Storybrooke try to prevent Zelena from stealing Mary Margeret's newborn baby for use in her evil plan, as flashbacks show Glinda attempt to convince Zelena to fight her evil tendencies and join her as a protector of Oz.

When Zelena's time portal re-opens and sends Emma and Hook into the Enchanted Forest of the past, their actions have dire consequences for the future.

Emma and Hook attempt to rectify the mistakes they made in the Enchanted Forest of the past and find their way back to Storybrooke in the present.