The film relates with authenticity and sensitivity the crazy challenge of the navigator Yvan Bourgnon: to accomplish the first round of the world alone, on a sport catamaran without cockpit. 220 days at sea, 55'000 km covered, without the possibility of sheltering from the elements. Alone with his camera, he goes through a shipwreck, storms, pirates, doubt, cold, heat waves, but also countless moments of happiness, tenacity, fulfillment and success. An immersion in a long and difficult adventure that Yvan Bourgnon, like an artist, makes accessible, comfortable, almost poetic.