1953, the eve of the Cartwright's departure from Malaya. 11-year-old Emma can't understand why they're leaving without their mother; why her taciturn father is refusing to answer questions. Lydia arrives home to an empty house - there's no sign of her husband Alec or her daughters. Panic stricken, she embarks on a dangerous journey to find them through the hot and civil-war-torn Malayan jungle - one that only the power of a mother's love can help her survive.