Fabrizio Zangrilli and Chris Szymiec gaze upon K2. Photo by Dave Ohlson.

Gerlinde Kaltenbrunner, National Geographic 2012 Explorer of the Year, climbs K2. Photo by Dave Ohlson.

Jake Meyer encounters harsh weather conditions on K2. Photo by Jake Meyer.

Camping below the summit of K2. Photo by Dave Ohlson.

K2: SIREN OF THE HIMALAYAS official movie poster. Designed by Matt Frost. Photos by Dave Ohlson.