Clark starts the new school year with a new ability: heat vision and a new vulnerability: red kryptonite. He shares his secret with Pete and continues to battle villains infected by green kryptonite, but the quest to discover the mysteries of his own origins occupy most of his attention this year. Pete becomes even closer to the Kent family after learning Clark's secret. Lana moves in with Chloe and Gabe Sullivan after her aunt Nell Potter moves away to be with her new fiancee and finds her biological father, Henry Small. Lex battles fiercely with his father for control of LuthorCorp while falling in love and marrying Dr. Helen Bryce. Chloe tries to resolve her conflicting feelings and complicated relationships with Clark and Lana.
