Supernatural: The Anime Series (2011)

S1E5 Savage Blood

In a quaint Colorado town, Sam and Dean delve into a disturbing case involving cattle mutilations where the animals have mysteriously lost all their blood. Their investigation leads them to cross paths with Jason, a vampire hunter whose presence raises questions about his motives for being in the area. As they dig deeper, the brothers must uncover the truth behind the gruesome events and Jason's unexpected involvement.