There are few athletic feats as audacious and inspiring as climbing Mt. Everest without supplemental oxygen. In 2016, climbers Adrian Ballinger and Cory Richards, used Snapchat to tell the story of their attempt to climb Everest without oxygen. Cory made it to the top. Adrian had to stop just before the summit due to hypothermia. In 2017, the friends return with the Everest No Filter 2.0 expedition with the goal of putting Adrian on the summit. Follow Adrian and Cory to get a look inside an Everest expedition like you've never seen before.