There are two hundred miles of raging rivers and dangerous mountains to cross. There are no towns, no roads, no bridges. There is no turning back. The Bakhtiari migration is one of the most hazardous tests of human endurance known to mankind. Every year, 500,000 men, women and children - along with one million animals - struggle for eight grueling weeks to scale the massive Zagros Mountains in Iran - a range which is as high as the Alps and as broad as Switzerland - to reach their summer pastures. The film's astonishing widescreen photography and brilliantly recorded soundtrack take the viewer out onto the dangerous precipices of the Zardeh Kuh mountain and into the icy waters of the Cholbar River.