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Summary
A chance to take out a nest of vampires backfires when the alpha-vamp shows up and turns the tables on Mary and The British Men of Letters, who are doing their best to recruit Sam and Dean.
Episode Guide
Season 01
Season 02
Season 03
Season 04
Season 05
Season 06
Season 07
Season 08
Season 09
Season 10
Season 11
Season 12
Season 13
Season 14
Season 15