THEN: Lilith wanted to break the 66 Seals to bring Lucifer to Earth.  Dean was recruited by the angels to stop it while Sam went his own route, drinking demon blood until he became strong enough to defeat her.  This difference in strategy caused the brothers to have an epic fight and vow never to speak to each other again.NOW (actually, still THEN, since the opening scene takes place in 1972): At a Maryland convent in 1972, a priest is terrified when a demonrushes in and takes over his body.  The next day the priest fives asermon to the nuns that his dad is locked away and that, ironically, herecently learned that the door to his cage is at that very convent. The demon priest yells at the nuns and then his eyes goes Yellow beforehe has some fun.  That‘s right...Azazel is Lucifer‘s son!
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