InOgden, Utah, several angels have been slaughtered for refusing to join Metatron, who claims he can get them back into Heaven. Several angels want Castiel to lead them against him, but Castiel refuses. Castiel is approached by Gabriel, who says he survived and came out of hiding to be the leader against Metatron and they will get his wife and daughter . Castiel realizes this is an illusion created by Metatron. Metatron views the whole angel war as a story and wants Castiel to play the villain by leading angels against him and take his wife and daughter but castiel wont a loud it he will protect bella and grace . Metatron claims that Castiel will fail, but he will let him back into Heaven and leave his beautiful wife and lovely daughter alone if he give him a power supply for his new grace which will otherwise soon kill him. Sam and Dean capture Gadreel, and while Dean is alone with him, Gadreel goads him about what Sam really thinks of him. Dean is heavily tempted by the Mark of Cain to kill him, but is just barely able to resist the urge. Metatron tells Sam he will trade Castiel for Gadreel. At the trade, Metatron easily puts out holy fire and erases angel warding. He says Sam and Dean cannot stop him, but it will be fun watching them try, as he departs with Gadreel. Castiel seems to somberly accept the mantle of leader of a group of angels as Metatron had wanted castiel is in heaven and takes bella and grace with him for awhile
so grace is in the this one she was last seen in the 1st ep of season 9