汤米、丽塔和罗伯特三名学生和他们的向导前往丛林，研究与文明分离的原始部落。 然而，学生们表示，他们参观的那个部落还不够原始，他们想找到一些真正的野蛮人，并找到传说中的食人部落。 Three university students of Ethnology and Anthropology named Amri, Rika, and Tomy organise a research trip deep in the jungles. Bisma, a seasoned hunter, and a jungle boy, Lahang, are helping them. Bisma who is experienced, is only willing to escort them till the Pangayan tribe’s village, for safety reasons. But the university students demand to go further. Bisma finally agrees to their challenge. On a raft, they follow a river deep into the jungle but when the raft breaks apart, they are separated into two groups: Amri and Rika with Lahang, while Tomy is with Bisma. Then Tomy and Bisma die in the vicious jungle, as well as Lahang. Only Amri and Rika manage to find a village on the edge of the jungle.[http://catalogue.filmindonesia.or.id/movie/title/lf-p008-78-438439_primitif]