Jonathan treks all the way to Antarctica to investigate life south of the polar circle. Along the way, he dives in the majestic kelp forests of Patagonia, swims with penguins, dives under an iceberg, meets a massive jellyfish, and has an incredible encounter with a leopard seal -- the apex predator of Antarctica. The accompanying lesson plan reviews the pelagic, benthic, and sea ice realms of the Southern Ocean.