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.

Helena and a local cop willing to help her bring the prisoner back to town. A flashback examines Helena's birth and mission.

The prisoner escapes, sparking a frantic search. Joseph and his men plot to learn the jungle's secrets.

Ushe is returned to the jungle by her tribe. Unfortunately, Joseph and his men figure out where they are and are now in hot pursuit.