Bouldering is a discipline of climbing which is stripped back to the bare fundamentals of the sport.
There are no ropes and each 'problem' is typically found on freestanding boulders.
While the climbs may take less then a minute to complete, the size of the holds and the angle of the rock make climbing the most difficult boulders a superhuman effort.
Some problems require weeks, months or even years of attempts in order to solve.
This film largely focuses on two problems, Bügeleisen and Big Paw, both graded at an 8c difficulty and both of which have been climbed by less then 10 people.