1923, on a private British forest island, a mysterious and somewhat eccentric lord invites a motley crew of guests to spend a weekend at his manor. Once there, it turns out the lord wants to lead them on an unparalleled hunt... where they're not the hunters, but the hunted ! On this strange island, extinct creatures from various eras roam, and no one knows why. But one thing is certain : victory will only come through survival... which is highly unlikely in such a setting !