Realizing that Molly and the other Starcatchers are in danger when the sinister being Lord Ombra visits the island and seems to control people through their shadows, Peter and Tinker Bell travel to England to help save the stardust.
While investigating the strange behavior of the once-peaceful mermaids, the Lost Boys battle their old nemesis, Captain Hook, whose evil plan threatens to destroy the Mollusk village and change life on Neverland Island forever.