All The Wild Horses documents the Mongol Derby horse race, the longest and toughest horse race in the world, and easily the most epic and dangerous, as it leads through 650 miles of Mongolian steppe, desert and mountain ranges. 　　译文(2): 《所有的野马》记录了蒙古德比赛马，这是世界上最长、最艰苦的赛马比赛，也是最史诗、最危险的比赛，因为它要穿越650英里长的蒙古草原、沙漠和山脉。