In "Expedition Everest", scientists and climbers embark on a groundbreaking journey to Mount Everest, where dozens converge to study the effects of climate change on the world's highest peak. Narrated by Tate Donovan, the film documents the expedition's mapping of the Khumbu Glacier, biologists' studies of extreme lifeforms, and a team of Sherpas and climate scientists climbing to install the highest weather station in the world.