Supernatural (2005)

S6E3 The Third Man

In "The Third Man," Sam and Dean enlist Castiel’s aid as they delve into a troubling case involving the mysterious deaths of several police officers, seemingly linked to the plagues of Egypt. Castiel reveals that the staff of Moses was wielded in the murders and explains that Heaven is in disarray due to the theft of divine weapons. Together, the trio embarks on a mission to track down the culprit, ultimately confronting a familiar adversary from their past.