Mary Margaret, David and Emma embark on a search when Regina and some magic beans go missing; Mr. Gold considers revealing the truth to Lacey; Bae winds up in 19th century London.

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. Meanwhile, Emma, Neal and Hook attempt to find Dark Hollow, where Peter Pan's shadow dwells, in order to capture it, and Mary Margaret is upset with David for keeping his poisoning a secret from her.

Pan leads Henry to a secret cave, where he has convinced the boy that he alone can save magic – and Neverland itself. But a showdown between good and evil is about to go down as Emma, Mary Margaret, David, Regina, Mr. Gold, and Hook find themselves directly on a path to Pan in an effort to save Henry.

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.