Sorry, you’re not allowed to access this page. Contact Yelp if you keep experiencing issues. The second season of Supernatural, an American dark fantasy television series created by Eric Kripke, premiered on September 28, 2006, and concluded on May 17, 2007, airing 22 episodes. The season aired on Thursdays at 9:00 pm ET in the United States, and was the first season to air on The CW television network, a joint venture of The WB and UPN. The previous season was broadcast on The WB.