Part 2/9:
The narrative starts with a group of skilled free divers - Frederick Bu, William Winram, Pierre Froela, and filmmaker Christiane Petrol - who embark on a global quest to explore the underwater realms of the ocean. Armed with nothing more than a mask and flippers, they seek to engage with marine life more intimately than any conventional diving methods allow. The adventure soon leads them to varied locations—from the perilous hunting grounds of the great white shark off the coast of Mexico to the breathtaking underwater caves in the Mediterranean.