Last of the Giants

Cyril and his team of adventure filmmakers embark on punishing and dangerous missions to find, study, and protect the last giant fish on the planet. This season follows the team through the Amazon and the Great North of Canada in pursuit of the prehistoric Pirarucu, the massive armor-plated White Sturgeon, and one of the most endangered freshwater goliaths on the planet, the Piraiba. (National Geographic)