Sam has to remind Dean not talk trash to the cops.  In the tradition of interweaving character drama and the supernatural in such hits as "Smallville," a completely new kind of thrill ride takes viewers on a journey into the dark world of the unexplained in "Supernatural." Bound by tragedy and blood to a dangerous, otherworldly mission, two brothers travel from the Colorado wilderness to the Nebraska farmlands and on to the isolated Wisconsin lakes, encountering creatures that most people believe only exist in folklore, superstition and nightmares. As they follow clues in their father’s journal, the brothers realize that he has passed on to them all the knowledge he accumulated during the past 20 years. They take up the mantle of his crusade and crisscross the lonely and mysterious back roads of the country in their '67 Chevy Impala, searching for their missing father--and hunting down every evil supernatural force they encounter along the way.