Watch Supernatural Season 7 Episode 23 Survival of the Fittest
Episode Name: Survival of the Fittest
Air date : 5/18/ 2012
In order to defeat Dick Roman and the Leviathans, Sam and Dean must locate three key items. Castiel helps with one but for the last objects, the Winchesters must face two of their strongest opponents: an Alpha and Crowley. Meanwhile, Bobby tries out a new ghost trick that ends up being very dangerous.
Supernatural Season 7 Episode 23, Watch