A prisoner in a state-of-the-art penitentiary begins to question the purpose of the emotion-controlling drugs he’s testing for a pharmaceutical genius.

A mysterious guide escorts an enthusiastic adventurer and his friend into the Amazon jungle, but their journey turns into a terrifying ordeal as the darkest elements of human nature and the deadliest threats of the wild force them to fight for survival.

Ray Lorkin, chief lawman in the tiny rural settlement of Wala Wala, Australia, fears that long-simmering tensions between the area’s aborigine natives and white settlers are on the verge of erupting. When it’s discovered that Kate, the white wife of local schoolteacher Les, has despoiled a sacred site by secretly meeting her aborigine lover, Tony, there, a shocking murder threatens to rip the small town apart.