"Echoes of the Invisible" interweaves a mosaic of profound quests. A blind man runs alone through Death Valley as journalist Paul Salopek walks 21,000 miles across the world to retrace our ancestors' migration. Photographer Rachel Sussman struggles to capture the oldest living organisms on the planet while astronomers and physicists attempt to penetrate the furthest depths of time. These ambitious explorers, alongside monks journeying to the earth's furthest reaches, are connected through their tireless search to touch the human heart in a world of noise and division.