Supernatural Season 9 Episode 17
Mother's Little Helper
When Dean chooses to stay in the bunker and try and locate Abaddon, Sam goes to a small Illinois town to investigate a string of vicious murders committed by seemingly harmless individuals.
Guest Stars
Mark Sheppard
Crowley
Alaina Huffman
Abaddon
Gil McKinney
Henry Winchester
Jenny O'Hara
Julia Wilkinson
Patricia Harras
Sister Agnes