The official press release for “Supernatural’s” season premiere episode, 6.01 – Exile on Main Street has been made public. Take a look below:

Mitch Pileggi returns as Sam and Dean’s grandfather — It’s a year later and Dean (Jensen Ackles) has given up hunting and is living with Lisa (guest star Cindy Sampson) and her son Ben (guest star Nicholas Elia). Mysteriously freed from his cage in hell, Sam (Jared Padalecki) finds Dean and tells him he needs to rejoin the fight and introduces Dean to a world—a family—he never even knew existed…. the Campbells, his mother’s family, lead by none other than their Grandfather Samuel (Pileggi). Phil Sgrricia directed the episode written by Sera Gamble (#601).

Source