Edge of Disaster (S01E07)

The team faces a fight for survival when a gigantic piraiba drags them down a turbulent river before they can even take a sample. They encounter potential disasters at every twist and turn, prompting a shift in their tactics. The crew must navigate through treacherous rapids, dodge hidden stingrays, deal with motor malfunctions, and avoid lightning strikes, all while fending off black piranhas and evading massive falling trees. Cyril, meanwhile, hooks a mysterious fish, leading him into a perilous struggle that exceeds his expectations.