Inspired by an uncredited story about a Peruvian whose son disappeared under similar circumstances. This exciting film contains thrills, emotion, adventure and action scenes of infighting between violent rival tribes that generate a lot of entertainment. An ecological adventure with mystical touches that was ahead of its time in denounce about forest destruction. Four million Indians once lives there, 120.000 remain. Although Bill wants desperately to have his son accompany him back to civilization, "Tomme's" loyalties now belong to "The Invisible People." The rain forest of the Amazon are disappearing at the rate of 5000 acres day. Finally, the father discovering a happily adjusted boy who may not want to go back to so-called civilization.
The teenager spends the next years living under jungle law and integrating an alternative lifestyle. Ultimately Markham is captured by a cannibal and bloodthirsty tribe and ironically rescued by "Tomme," who only has dim memories of his biological dad.
After the son (Charley Boorman) of engineer is abducted by an aboriginal tribe on the edge of the rain forest, the engineer and his wife (Meg Foster) spend the next 10 years searching for him.
Bill Markham(Powers Boothe) moves his family to Brazil where has a job as an engineer in construction a dam project. Ecological thriller that has in highlighting the destruction of the South American rain woods being based upon a real story and filmmaker John Boorman cast his own son, Charley Boorman, in the starring character.