When Indian workers begin to disappear from an expedition into the Amazon rain forest, fifteen-year-old Jake fears that his father, a bat biologist, is in great danger. Against his dad's wishes, Jake flies to Brazil and joins his father's research team, working high in the canopy of a remote stretch of the rain forest bordering a cave-ridden promontory.Unfortunately, Jake's first climb up the rope bridges and suspended walkways leads him to discover the mutilated bodies of the missing Indians - and triggers a terrifying, explosive attack by a winged beast not known since the beginning of time. When Jake's father is attacked, it becomes clear that the hunters are now the hunted.