While practicing motocross with Pete, Clark Kent falls down through a hole in an underground cave and meets a young Native American woman named Kyla Willowbrook (Tamara Fieldman). Kyla is investigating some mysterious ancient paintings in the walls of the cave, and she and Clark immediately fall in love with each other. Her grandfather Professor Willowbrook and some ecologists are fighting against the construction of a Luther Corp building that will destroy the caves, but generate 1,000 new jobs in Smallville. Martha becomes split between the both interests, but the blind Lionel is motivated only by greed and self-interest to keep the project open, while Lana rallies the rest of the town in a protest to stop the construction project. Meanwhile, a mysterious wolf-creature kills a construction foreman, and threatens Martha and the blind Lionel. Following investigation by Chloe, Clark believes that the Professor Willowbrook is a mutant with the power of transforming himself in a wolf. But the real culprit is Kyla.

Lionel calls Professor Joseph Willowbrook to the Kiwatche caves to show a recently found ancient object. Professor Willoebrook brings his assistant Jeremiah Holdsclaw, who takes the relic from the hands of Lionel. It transforms in a knife and makes Jeremiah as powerful as Clark. He runs away from Lionel's security men with the mythic knife. Professor Willowbrook insists that Clark is Namam, the man who fell from the stars, and in accordance with the Indian prophecy, that knife belongs to him and could be destroyed only by his greatest enemy. Jeremiah thinks that the enemy is Lionel and makes plans to kill him. Meanwhile, Lana decides to move to Paris to be away from Clark and make a fresh start. Also, a troubled Pete reveals to Chloe that his parents have decided to get a divorce.