yeah
heres a bit of the background
when sam and dean were little
mary, their mother was killed by "the yellow-eyed demon"
ever since then, their father has been out hunting this demon, if not, saving others from
different demons and spirits along the road.
now, dean,now 26 looses contact with his father and attempts to locate his brother, who had set
out on his own way, tired of hunting and trying a "normal" life, to try and locate him.
and so begins the first season