Bobby has sold his soul to [[Crowley]] in order to find out where [[Death]] is, although Crowley states he intends to return it and is only keeping it as "insurance" so that Sam and Dean don't turn on him.
As they rpeapre to go and stop the distribution of the [{[Croatoan Virus]], Castiel laments his newfound humanity and how useless he now feels, although Bobby quickly reprimands him for these thoughts considering he is still trapped in a wheelchair. Sam ponders how complicated their lives have gotten, and remembers the old days when they used to "just hunt Wendigo's. Crowley gives Dean [[Death's Scythe]] in order to kill Death and also reveals that he gave Bobby back the use of his legs in their deal.
Sam, Bobby and Castiel arrive at the Niveus warehouse and immediately get to work stopping the trucks from leaving with the virus, however the demons inside infect a number of people with the Croatoan virus to attack them. Sam rushes through the warehouse quickly looking for survivors and dispatching the infected.