 When Dr. Virgil Swann dies, Clark Kent receives the octagonal metallic disc through mail. He goes to the Kawatche caves and after inserting the disc in a stone, he hears Jor-El ordering him to find the knowledge stones to protect planet Earth against destruction. Meanwhile, Lex Luthor and Jason Teague are in Shanghai trying to locate one of the stones. Lionel Luthor gives a copy of the map and an airplane to Lana Lang, and together with Clark, they travel to China and meet Lex and Jason arrested and being tortured in a temple. When Lana is captured and also tortured, Isobel returns to protect Lana s body.