S1·E63 The Lost Memories of Pirate Pan

Peter and Tinker Bell travel for two days and seven nights in search of a new Lost Boy to bring to Neverland. However, they bring home a little girl named Jane who seems to know an awful lot about Neverland already. It turns out that Jane is Wendy's daughter from the future - the Darling children see their adult selves in a vision conjured by Tink and realize that they must one day leave Neverland. Unfortunately, the accidental trip to the future has wiped out Peter's memories. Jane holds the key to saving Peter when Hook makes the boy a member of his crew.