The Walking Dead: Chandler Riggs on whats in store for Carl in season 4

Season 3 of The Walking Dead was a bit of a rough road for Carl Grimes, what with him having to watch his mother die and then put a bullet in her brain so she did not come back as a zombie. Oh, and then he had to sit there while his dad went off the proverbial deep end. Will things be any better when AMCs zombie drama picks up again for season 4 on Oct. 13 And where does the relationship between Papa Grimes and son stand