Season five of Smallville, an American television series, began airing on September 29, 2005. The season conclued on May 11, 2006, after 22 episodes. It is the final season that aired on The WB. Season 5 deals with the aftermath of the second meteor shower. Clark deals with adult life, going to college, a real relationship with Lana, and the loss of someone he loves. His distrust for Lex continues to grow, as Clark's professor begins supplying him with evidence of LuthorCorp's secret projects. Clark looks to Chloe for support, while Lionel's transformation into a better person draws skepticism from everyone. Jensen Ackles, who played Jason Teague, left the show after one season, and Erica Durance became a series regular as Lois Lane. The writers also brought in Arthur Curry, Victor Stone, and Andrea Rojas, DC Comics superheroes, in three separate guest spots.