While Sam and Dean try to figure out how to cure a demon, Crowley tells them that unless they surrender the demon tablet and stop the trials, he will kill everyone they have ever saved. Despite this, Dean is determined to continue despite them having no demon to cure. Metatron tells Castiel that Heaven is in chaos and he wants to seal it up to prevent the war from spreading to Earth. He suggests Castiel do the three trials needed to seal Heaven, the first of which requires killing anephilim, the offspring of a human and an angel. Castiel is reluctant at first, but when the nephilim fights back against them, Castiel kills her to protect Metatron aftherwords bella continue to heal her husband and cas bella and grace spend time in the bunker