Dean and Sam investigate a bizarre murder and realize the killer bears the same tattoo as those from the Styne family. Meanwhile, Castiel acts as referee when Charlie and Rowena are forced to work together on the Book of the Damned. When Crowley discovers that his mother is missing, he turns to an old enemy for help.
| Title | Dark Dynasty |
|---|---|
| Genres | Drama Mystery Sci-Fi & Fantasy |
| Release Date | 2015-05-06 |
| Episode Runtime | 00 Hours 45 Minutes |
| Season Number | 10 |
| Episode Number | 21 |
| Production Companies | Kripke Enterprises, Supernatural Pictures, Wonderland Sound and Vision, Warner Bros. Television |
