Lin Cheng’s team went deep into the jungle to search for the secret of Elixir of Life， the Lithospermum glabra. In the journey， Lin Cheng met a mysterious girl. He took the girl with him， but then was attacked by a huge snake. The rest of his team was all dead. Lin Cheng took the girl back to the city， and his career hit the bottom. Later， he realized that the huge snake with the DNA repair enzymes was also in the city. Lin Cheng decided to raise the snake girl in order to get it. When they were getting along with each other， love secretly grew in the heart of the two， but for fame and money， Lin Cheng still decided to use her to catch the huge snake. He took the snake to his lab， ready to proceed with the dissection. She was very disappointed and ran away with the snake. Mr. Jiang took a hunting team to the jungle to search for the huge snake. It was when Lin Cheng realized his mistake. He dropped out from the team and found the snake girl. He asked her to trust him and they would run away together. Unfortunately， to protect the jungle and the huge snake， she sacrificed herself.