2015年加入锐步奥运会是5天,13个事件,折磨人的测试找到适当的男性和女性。“适者”的戏剧性故事顶级运动员资格和竞争。一个幕后观察如何成为世界优秀运动员。运动员找到他们要测试自己的事件周,有时几天,甚至几分钟前他们把地板上的竞争。本片讲述8的世界顶级运动员竞争。

　The 2015 Reebok CrossFit Games were a 5 day, 13 event, grueling test to find the fittest male and female on earth. "Fittest on Earth" follows the dramatic story of the top athletes who qualified and competed. A behind the scenes look into what it takes to be among the worlds elite athletes. Athletes find out the events they are going to test themselves weeks, sometimes days and even minutes before they take the competition floor. The film follows 8 of the worlds top athletes as they compete.