In an unbelievable story of perseverance, free climber Tommy Caldwell and climbing partner Kevin Jorgeson attempt to scale the impossible 3000ft Dawn Wall of El Capitan.In an unbelievable story of perseverance, free climber Tommy Caldwell and climbing partner Kevin Jorgeson attempt to scale the impossible 3000ft Dawn Wall of El Capitan.In an unbelievable story of perseverance, free climber Tommy Caldwell and climbing partner Kevin Jorgeson attempt to scale the impossible 3000ft Dawn Wall of El Capitan.