Searching for the wreck of an eighteenth-century Spanish treasure ship, Jax Malone discovers an uncharted island. When he and his crew are attacked by natives on the beach, the Americans are rescued by unlikely saviors, a troop of soldiers from the past, descendants of the English colonists who were sent to settle the New World over four centuries ago – then vanished without a trace.

While stranded on this island, Jax and crew are happy to be among civilized people. But they gradually find that things are not as they seem. When their group becomes divided between the English and the natives, the Americans discover that their survival is further threatened by something they have even less control over.