S12·E10 Lily Sunder Has Some Regrets

Episode recap

In the tenth episode of the twelfth season of Supernatural, titled Lily Sunder Has Some Regrets, the narrative centers on a woman named Lily Sunder. Having spent more than a century immersing herself in the study and practice of black magic, Sunder has spent this time refining her abilities with the specific intent of seeking vengeance. Her motivation stems from the murder of her family, an act she attributes to a specific band of angels.

As Sunder prepares to carry out her plan for retribution, Sam and Dean Winchester become aware of the impending threat. The brothers realize that Castiel is being targeted as the next victim in Sunder's quest for revenge. Consequently, Sam and Dean must act with urgency to intervene in the situation. Their primary objective is to protect Castiel and prevent him from falling prey to Sunder’s honed magical powers. The episode focuses on the brothers' efforts to navigate this conflict and stop the cycle of violence initiated by Sunder’s long-standing vendetta against the angels responsible for her past trauma.