Oceans (S01E04)

Australia is a stunning tropical haven, yet beneath its crystal-clear waters lurk dark and dangerous secrets. The seas encircling this island nation harbor some of the most lethal creatures on the planet. These marine predators, which stealthily attack from the depths or utilize deadly biological mechanisms, are both captivating and breathtakingly beautiful, but their lethal nature is a constant reminder of the hidden dangers that lie beneath the surface.