S1.E5 ∙ Mexico's Artificial Reefs

A visually stunning chronicle of what it is like to live in Antarctica for a full year, including winters isolated from the rest of the world, and enduring months of darkness in the coldest place on Earth.

THE LONELIEST WHALE is a cinematic quest to find the "52 Hertz Whale," which scientists believe has spent its entire life in solitude, calling out at a frequency that is different from any other whale. As a group of scientists mount an expedition to locate this elusive creature, the film delves into the profound interconnection that exists between whale culture and our own.

"Antarctic Voyage" is a documentary from award-winning filmmaker Kevin Schreck ("Persistence of Vision," "Tangent Realms: The Worlds of C.M. Kösemen") about a biological research expedition to the remote island of South Georgia to study the state of the region's local wildlife in a changing world.

Meet Mara, an endearing lion cub striving to be like her mother; Sita, a cheetah and single mother of five; and Fang, a proud leader of the pride who must defend his family from a rival lion.

Pioneering scuba diver Valerie Taylor, who has dedicated her life to exposing the myth surrounding our fear of sharks.

An extraordinary sailing and surfing expedition into the heart of Antarctica's most critical marine area. Battling fierce winds, treacherous seas, the looming threat of climate change and global politics to protect this fragile ecosystem.