Sam and Dean capture Crowley so they can use him for the third trial. Castiel enlists Dean's help in completing the second Heavenly trial by retrieving the bow of acherub. Crowley uses a blood spell to call upon other demons for help, only for Abaddon to answer his summons by trying to kill them both so that she can overthrow Crowley and rule Hell herself. Sam forces her to retreat by engulfing her in holy fire, and a tearful Crowley begins showing signs of becoming cured. Naomi tells Dean and Castiel that the "Heavenly trials" are fake. Metatron is tricking Castiel into performing a spell that will expel all angels from Heaven. She tells Dean that completing the demon trials will kill Sam. Metatron kills Naomi and takes Castiel hostage. Finding that Sam is willing to die to atone for how often he has let his brother down, Dean talks Sam out of finishing the trials. Metatron completes his spell and sends the now-human Castiel back to Earth. Sam, Dean, Castiel, bella holding grace and Crowley look up into the night sky as thousands of angels begin to fall
season 8 finale season 9 coming soon