SUPERWHO - (PART 1) Despite extensive research, the Winchesters can’t find anything that can kill a Weeping Angel. The Doctor tells them the only thing they can do is run, but Sam and Dean are uneasy knowing another innocent might be taken before the Angel moves on. Castiel makes a suggestion; he finds the Weeping Angel eerily familiar and offers to communicate with it alone, as he feels it wants him to go to it. He refuses to tell them how he will kill it, but running out of options and time, the Doctor and Winchesters are forced to reluctantly agree. However, it is only later they find out Castiel had left out a specific detail, most likely so they wouldn’t stop him; Weeping Angels do not feed on an angel’s time energy, but their Grace.