Before Supernatural Season 9 debuts October 8 on The CW, fans might want to catch up with The Winchester Brothers for The Complete Eighth Season Blu-ray or DVD, available September 10. Relive all the thrills, or experience this latest set of episodes for the first time, as Sam (Jared Padalecki) and Dean (Jensen Ackles) attempt to lock the gates of Hell forever. We have an exclusive featurette from this release, which looks at Misha Collins' plight as Castiel this season, from his daring escape out of purgatory to his struggles with becoming a hunter. Check it out as the mythology behind Supernatural continues to thrive and grow with Season 8, heralded by fans as one of the best seasons to date. We also have a look at the gag reel, which is included with this release.

Supernatural brings The Complete Eighth Season Blu-ray and DVD home on September 10.