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.
While visiting a powerful smuggler in the heart of the jungle, Helena discovers he has unexpected connections to her family and a surprise prisoner.
A local cop helps Helena bring the prisoner back to town. A flashback examines conflicts between Yua and Ushe.
The prisoner escapes, sparking a frantic search. Joseph's men plot to learn the jungle's secrets.
Ushe is returned to the jungle by her tribe. Unfortunately, Joseph's men figure out where they are and are now in hot pursuit.
As the tribes wage war against one another on Earth, Helena -- with Ushe's help -- faces off against the enemy in the cosmic heart of the jungle.