While still recovering from their ordeal in the Kiso Mountains of Central Japan, Japanese American brothers Jim and Andy are surprised by a female agent of the Clouds and Rain Company, seeking refuge with them. After she leaves they are accused of having stolen the secret of the sexually intoxicating pheromone perfume that is the basis of the company”s power. They set out to find the real thieves and prove their innocence, while embarking on lustful adventures along the way.