Luc is an orphan living in debt slavery in Gabon. Then a man calling himself Prof comes to town with a mysterious mission. When Luc tries to rob him, the man isn't angry. Instead, he offers Luc a job. Together, Luc and Prof head into the rough, dangerous jungle in order to study the elusive chimpanzees. There, Luc finally finds a new family--and must act when that family comes under attack.