Zhang Baoqing's old friend, a teacher in the Institute of Geology, Mr. Lu Guohua, is poisoned and unconscious.

Baoqing decides to go to the Eagle Village with Caigua to find out what happened to Mr. Lu and to find a cure; Baoqing is accidentally caught by a trap that was set by a hunter.

Baoqing thinks Yang Ye might be hiding something so he goes to Ye's room, where he finds nothing. When he sees a stranger, he chases him to the Hunter Competition and uncovers the truth.

Ye told Baoqing that he was trying to find out the truth of the car accident which killed his father. Meanwhile, Caigua and Er Bizi are punished by their grandmother because what happened.

Baoqing, Caigua and Er Bizi go to Lao Longkou and find Karst Shrine by chance. Hongguo is missing and Yang Ye goes to the mountain to look for her, but ends up with a fever. Hongguo then goes down hill to get help, but almost falls from the cliff.

Zhang Baoqing, Caigua and Er Bizi enter the Karst Shrine and bump into Vandellia cirrhosa and a huge spider. Madam Shunde fails to find them, but meets geological team members and Hongguo who are looking for Yang Ye.