The story started in a secret lab that focused on gene experiments. A researcher ran away from the lab with the gene of hydra, a snake with nine heads. In the primitive forest of Mingling Mountain, she successfully produced the hydra. To get the No. 9 growth hormone, she set up a trap with the scale of the hydra. Unaware of the truth, Professor Chan and her fiancé were lured and stuck in one trap after another!