Helped by the two peasant thieves who tried to steal Willy Fog’s instruments, Transfer returns and kidnaps Romy and Tico. While our friends are having great difficulty in climbing to the top, a terrific storm starts. They try to avoid it but have to take the longest way round in doing so. In the meantime, Transfer and his henchmen reach the top and they hide inside the volcano. Willy Fog, accompanied by Lidenbrock and Hans make camp completely unaware of what has happened.