Géraldine is the captain of the Skeaf, a magnificent century-old sailing ship. Energetic and enthusiastic, she has turned her passion and her profession into a tool for emancipation and inspiration for young people in difficulty. For a few days, she and her crew take on board a group of teenagers from a neighbourhood in Brest. In the heart of the Iroise Sea, they will experience adventures together, overcome their fears, work as a team and gain self-confidence.