In the heart of Africa, a man-sized predator prowls the waters of the most powerful river on the continent. But, for a team of scientists on a quest to unlock the secrets of the Congo River, this ravenous relative of the Pirhana may hold the key to understanding the true story of one of Africa’s most important ecosystem, the Congo River Basin. To catch it they‘ll embark on a fishing trip straight into the heart of Africa and in the process uncover a bizzare geographic location that scientists are calling a potential hotbed of evolutionary wonders.