25 kg - that's the daily carbon footprint of a French person. To lighten their load during their journey, Gil and Ben will have to find soft mobility solutions. The more CO2 they save compared with a journey in a combustion-powered car, the more weight they can shed. With a lot of humour and authenticity, Gil and Ben take us on a green road-trip, mixing emotions and thrills, challenging themselves and meeting inspiring people who are taking action to preserve their region. Gil and Ben are two inseparable friends, even if everything pits them against each other. Gil is an adventurer at heart, a sportsman, a nature lover, a vegetarian and a committed environmentalist. Benoît, on the other hand, is a homebody, not much of a sportsman, a carnivore, asthmatic and a hypochondriac to boot. His favourite environment is the city.