Lifeline (2011)

Constructing electricity pylons across northern Iran, Saman and Emran are happy. As they and their team scramble across flimsy scaffolds and camp out at night discussing love and life, they find camaraderie in their dangerous work. But as the job goes on, new troubles and dangers keep emerging, and a personal conflict begins to cause tensions between the two friends. Will Saman and Emran let their differences affect their work, and make an already dangerous job become fatal?