After meeting a diver who was attacked by one, Cyril goes on a mission to catch a goliath 'grouper' - one of the world's largest fish - using a primitive and dangerous technique.
Cyril is recruited by researchers to catch ocean predators and swab their teeth to help develop antibiotics that save shark-bite victims.
Cyril uses an extreme and dangerous technique used by Native Americans hundreds of years ago in order to catch a powerful catfish in Oklahoma's muddy waters.
After training with the Brazilian Army's special forces unit, Cyril embarks on a dangerous journey deep into the heart of the Amazon rainforest in order to catch the mighty piraiba.
The 'alligator gar' fish was once hunted to the edge of extinction. Cyril helps biologists understand these mysterious prehistoric creatures so they can help their numbers recover.
To get to Brazil's largest prehistoric fish, the endangered arapaima, Cyril must wade through swamps infested with piranhas, caimans and anacondas.
Cyril Chauquet
Host
