Am Limit is the story of two brothers, Alexander and Thomas Huber, who have challenged their limits on the mountains since childhood. Today, they are among the greatest climbers and mountaineers worldwide, highly regarded and renowned for their courage and willingness to take risks in breathtaking enterprises. The brothers entrust their lives to each other when they are on the mountains, but live apart from each other and have very different private lives; they have experienced conflict because of their different lifestyles, but in some way are inseparable because of their shared purpose, seeking out and extending their abilities. Their enterprises fascinate the world because they passionately take risks to the extreme. After all their successful challenges, Alexander and Thomas are now getting ready to break the speed climbing record on the “wall of all walls”, El Capitan in the Yosemite Valley in California.