"Kislorod" is a Russian documentary mini-series about a trio of mountaineers who set out to reach the two highest peaks in the world in Pakistan. They face a dangerous ascent of the Chogori (8611 meters) and Broad Peak (8051 meters). Two members of the team are experienced athletes who have participated in many climbs, but the third mountaineer is a young novice, dreaming of fame and thrilling experiences. The daredevils capture their entire journey on camera, sharing their emotions and joys with the audience.