Katherine Sutton vowed to never return to hunting the supernatural after watching her mother die before her eyes. It's been two years, and so far, she's kept that promise. Enter Sam and Dean Winchester, arguably two of the best hunters out there. Katherine remembers them fondly from her childhood, but when they come to her for help on a hunt, she refuses. Even so, a small part of her urges her to go back to hunting, and eventually, she gives in. Join Sam, Dean, and Katherine on a whirlwind journey of ghosts, ghouls, demons and maybe a little love.