What should have happened during the Season 5 finale of Once Upon a Time and after.

Once kidnapped, being a princess went out the window. Princess Emma, child of Snow White and Prince Charming, was kidnapped by the one and only Captain Hook. He took her to Neverland, and the only way to return to the enchanted forest was for her to get close to Pan. As soon as he handed her over he knew he made a mistake and was going to do anything to get her back. To bring her back to her parents. He would give up anything to make her happy.

Set immediately after the season three finale. As Emma and Killian's relationship begins to blossom, a new foe arrives in Storybrooke. Why does she seem determined to kill Killian? What happens when an unexpected old friend returns to Storybrooke? Can the the pirate and the princess overcome these obstacles and live a normal life together, or will the icy road ahead stop them from ever being together?