Seb Berthe dreams of climbing the Dawn Wall, the most difficult route in the world. But Seb has no intention to reach the foot of El Capitan in the United States. He assembles a team of six climbers, two sailors and a dog to take up the challenge of realising his dream: to reach America on a sailing boat to climb the legendary walls of Yosemite! The long Atlantic crossing and subsequent road trip in a decrepit Mexican van, provides plenty of opportunity to get to know each other. On arrival at the foot of El Capitan, the team supports Seb in his extraordinary challenge. His push on the Dawn Wall becomes a collective climb, with everyone preparing to take up their own personal challenge.