Chang discovers Mei's secret and forces her to flee Truckee. Cullen's search for her brings new realizations while exorcising old demons. ...

Dean spends some bonding time with Mary and Donna. Nick finally finds the answer he has been searching for. Sam is left to make an unimaginable choice. ...

Despite his increasing weakness, which he ends up claiming to be purifying him from demonic ancestry, Sam convinces Dean they must go on with the triple trial. Crowley ge ...