Sequel to the popular Spanish series "Around the World with Willy Fog", 1983, this time adapting the novel of Jules Verne, "20,000 Leagues Under the Sea". The Adventures of Willy Fog are limitless. The most famous British knight heads to the depths of the sea ... It all begins with the mysterious disappearance of many ships. The sailors are terrified by the existence of what they believe to be a sea monster.