In this promo for The Walking Dead Season 3 Episode 10, "Home," The Governor doesn't want Andrea to go to the prison and Hershel doesn't want Glenn to go to Woodbury. They should have an exchange program! We see Daryl and Merle on the road, with Merle pointing his gun at someone and Daryl saying "Let 'em go." Hershel said they need Rick more than ever. But they really need him sane, and that's not something he can control.