Supernatural Season 6 Trailer! Get your first look at The CW's recap of last season as well as a little hint of what to expect from the sixth season. Brian B. — July 31, 2010 Facebook Twitter Reddit Email Comment The first extended TV spot for the sixth season premiere of Supernatural is here! Get your monster hunt back on with Sam and Dean. Check out the new trailer below! Supernatural returns to The CW on September 24th, 2010.