The murders of four missionary women bring Helena, a detective, to the deep jungle. Years before, Yua and Ushe are tasked with protecting the jungle.

Meeting resistance from locals, Helena sets out on her own to investigate. She's haunted by Ushe, one of Yua's protégés, who's also been murdered.

Helena connects the dots from the murders to her tortured personal story. Almost 50 years earlier, Yua's tribe battled Joseph's men.