Three years after an unsuccessful first attempt, our crew of six friends heads back to the Nun Kun with one goal in mind: to make the mystic ski descent of this 7,000-meter giant.

Of course, nothing goes according to plan. Visa issues, a porters' strike, gear failures, unpredictable weather, a few (far too many) clouds… and, of course, altitude sickness.

The film constantly balances the carefree spirit of a group of friends with the realities of a 7,000-meter expedition.