A mad biology professor, a terminally ill rich man, an adventurer looking for a missing relative, a desperado who only sees money... A group of people with different goals formed an expedition to go to the depths of the insect valley in the southwest of the country to find the ancients that have been sleeping for thousands of years, along with the legend of the insect king. In the face of surging poisonous snakes and scorpions, sophisticated hallucinogens, huge and ferocious ancient insect kings...the expedition team experienced many thrills in the ancient tombs, and launched a life-and-death confrontation with the lost mysterious civilization of the ancient Dian Kingdom. The Dao Dao puzzle set by the ancient Dian King, made the explorers fight back and forth between human nature and desire, and the desperate battle in the secret realm of Insect Valley. Watch drama online for free.