Castiel brings Claire back into the fold on Supernatural Season 10 Episode 20 and she even got some hunting tips from Sam and Dean in case she wants to get in on the life again.
Claire finally finds her mom and although there is a tragic ending, it's actually incredibly satisfying and sweet, as well.
There was nothing on the Mark of Cain, but we were introduced to the Grigori angel and it will be really fun to see if it eventually ties back into the main story somewhere in the future.
Find out what else went on with your favorite brothers and their pal the angel when you watch Supernatural online via TV Fanatic.
Carissa Pavlica is the managing editor and a staff writer for TV Fanatic. Follow her on Twitter.