The CW has released the synopsis of the sixth episode of Supernatural‘s eighth season, “Southern Comfort.”

KSiteTV has the description of the episode, which will include the return of a fan favorite guest star:

GARTH RETURNS TO HELP SAM AND DEAN ON A CASE — Sam (Jared Padalecki) and Dean (Jensen Ackles) investigate a murder and find Garth (guest star DJ Qualls) is already on the case. Dean is not happy to learn that Garth has assumed Bobby’s duties, but Garth points out that both Sam and Dean have been missing for the last year and someone needed to do it. They guys discover an “avenging ghost” is responsible for the murders and they need to find the source before the killings starts again. Tim Andrew directed the episode written by Adam Glass (#806).

It looks like the show will continue exploring not only what the Winchesters’ year-long separation did to each other, but also what their absence did to the hunting community as a whole.

Looking for more ‘Supernatural’?

We have episode synopses and promotional stills for the next two episodes, entitled “Bitten” and “Blood Brother” respectively.

Misha Collins also recently teased Castiel’s role in season 8.