The CW has released the episode synopsis for the ninth episode of Supernatural‘s eighth season, “Citizen Fang.”

We reported earlier that this episode would see the return of a familiar face and now we have more details about his return:

SAM PUTS A TRACKER ON BENNY — Sam (Jared Padalecki) asks a hunter named Martin (guest star Jon Gries) to keep an eye on Benny (guest star Ty Olsson) without telling Dean (Jensen Ackles). However, when Martin tells Sam there was a vampire kill and he thinks Benny is responsible, Dean defends his friend. When Martin decides to take things into his own hands, things get messy and Dean is forced to make a very hard decision. Nick Copus directed the episode written by Daniel Loflin.

It seems that Martin has left the mental institution and is back in the game since we last saw him in season 5’s “Sam, Interrupted.”

And the brothers’ conflict over Benny will continue in this episode as Sam is ready to think the worst of him while Dean stands up for him. With the involvement of another hunter, this could turn ugly.

“Citizen Fang” airs Wednesday, December 6 at 9:00 p.m. ET.

What do you think of the synopsis? Are you looking forward to the episode?

Looking for more ‘Supernatural’?

We have an episode synopsis and promo stills for Supernatural 8×08, “Hunter Heroici.”

The CW also recently released an intense trailer for the November sweeps episodes of Supernatural.