With the help of the Rio de Janeiro Police, our heroes set off on a journey to uncover the source of the poaching operation by departing on motorbikes for the Amazon River Basin. Upon reaching the Teles Pires River the trio jump on a moored boat to continue their adventure deep into the Amazon jungle. Uncomfortable in water, Tarzan begins to become anxious as the water rushes faster and choppier turning into rough rapids. Harshly tossed back and forth, the group decide to try to make it to the edge of the river and jump out of the boat into the rushing water unaware ...