Dean Winchester's (Jensen Ackles) demon behaviour will continue in the next episode of "Supernatural" Season 10. A promo video released for episode 2 titled "Reichenbach" teased that Crowley (Mark Sheppard) will have a hard time controlling demon Dean and a faceoff between the Winchester brothers will arise.

The promo video begins with the King of Hell confronting Dean Winchester with his violent and reckless behaviour. "What do you think you're doing?" Crowley asked to which demon Dean responded without hesitation with "Whatever I want."

The next scenes of the video clip teased that the Winchester boys will finally come face to face. "Whatever happened, we will fix it," Sam (Jared Padalecki) assured his brother. However, demon Dean responded that he is doing everything he can to stop himself from ripping out Sam's throat.

Furthermore, Sam tried to convince Dean in the promo video that there is still something good in him. Sam pointed out that demon Dean did not kill his victim because he took mercy on the guy. "What I'm gonna do to you Sammy, well that ain't gonna be mercy," Dean coldly responded. Watch the promo video below.

According to the episode synopsis in a Comic Book Movie report, Crowley will start to notice demon Dean become more aggressive. Dean thinks the behaviour is a side effect from transforming into a demon but the King of Hell explains that it has something to do with the Mark of Cain.

Crowley revealed to Dean that the Mark of Cain has to be fed. In "Supernatural" Season 10, episode 1 titled "Black," Cole (Travis Aaron Wade) used Sam as bait to lure Dean but the older Winchester brother hung up on Cole's phone call after telling him that there will be no trade or meet up.

The next episode will have Cole torturing Sam for information on his brother's location so he can get his revenge. The episode synopsis revealed that Cole's father died years ago and he blames Dean Winchester for what happened.

As for Castiel (Misha Collins), Hannah (Erica Carroll) notices the angel is becoming weaker due to his fading grace so she makes a bold decision of asking the imprisoned Metatron (Curtis Armstrong) if he could help Castiel.

"Supernatural" Season 10, episode 2 titled "Reichenbach" is scheduled to air on Tuesday night, Oct. 14, at 9 p.m. ET on the CW Network.

Credit: YouTube/MiraclePromos

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