Amelia Divine, the young heiress of tragically dead wealthy parents, heads to her guardians on Kangaroo Island, but the ship is caught in a storm and crashes on a reef. When she wakes up, the girl discovers that of all the passengers, only two are alive: she and Sarah Jones, a paroled prisoner heading to work for a farmer with many children. When Sarah realizes that Amelia is losing her memory after hitting her head, she comes up with a cunning plan...