Ep 3. Soul Survivor

In episode 3 of season 10 of Supernatural, titled "Soul Survivor," the Winchester brothers continue their hunt for their possessed brother, Sam. Dean has locked Sam in a bunker to cure him of the demon blood addiction, but the cure is taking a toll on Sam's mental state.

Meanwhile, Crowley is revived by a group of his loyal demons and discovers that Dean has the Mark of Cain. He believes that the Mark can make him invincible and orders his loyal demons to capture Dean.

Dean becomes increasingly irrational as he struggles with the effects of the Mark. He becomes violent and aggressive, and Sam is forced to fight him off. Sam soon learns that there is a cure for the Mark of Cain, but it requires the sacrifice of a powerful demon, and Crowley is the only one who can help.

As Sam and Crowley work together to cure Dean, they are also being hunted by the mysterious and powerful organization known as the Styne family. The Styne family is determined to eliminate all supernatural creatures that they deem unworthy of existence, including the Winchesters, Crowley, and their allies.

The episode culminates in a dramatic confrontation between the Winchesters, Crowley, the Styne family, and the demons loyal to Crowley. The fate of the Winchesters, Crowley, and the rest of the supernatural world hangs in the balance as they battle for their survival.

"Soul Survivor" is an intense and action-packed episode that delves deeper into the complex relationships between the Winchesters, Crowley, and the demons. It explores the themes of addiction, redemption, and sacrifice as the characters confront their own dark pasts and uncertain futures. This episode sets the stage for the rest of season 10's thrilling and suspenseful storyline.