[Warning: This story contains spoilers from AMC's The Walking Dead and the comics which inspired it.]
The world of The Walking Dead is about to expand.
Following the shooting of Carl (Chandler Riggs) at the close of the Season 2 premiere, Rick (Andrew Lincoln) will frantically set out in search for help. He'll seek solace at the farm of Hershel Greene (Scott Wilson), which houses a family unaware of just how far the zombie apocalypse has spread.
"They think this is just a temporary thing," explains Lauren Cohan, whose character, Maggie Greene, will be introduced in Sunday's episode. "They've been really sheltered. So when the group comes, they come with...