In the Caribbean, a carefree charter skipper (John Mills) and his tomboyish daughter (Hayley Mills) make the acquaintance of a young lawyer (James MacArthur) come to visit his rich yachtsman uncle (David Tomlinson). While the old seadog fills the attorney's head with notions of sunken treasure, is he just trying to dredge up a love match for his little girl? Colorful family adventure co-stars Lionel Jefferies, Harry Andrews, Niall MacGinnis. 102 min. Widescreen; Soundtrack: English Dolby Digital mono; Subtitles: English; audio commentary; theatrical trailers.