A wealthy family in Berlin adopts an orphaned girl, Lore, who instantly becomes an older sister to their biological daughter, Caroline. In 1939, Caroline and Lore, who are now young women, flee to Switzerland when their parents disappear.

As the Japanese forces try to recapture Guadalcanal from the American forces occupying the island, many fates converge and inter-twine during World War II.

Marine lieutenant Ken McCoy heads a mission into the jungles of the island Mindanao in search of a missing colonel, who is reported to be harassing the Japanese inhabitants.