After Carl is accidentally shot, the group are brought to a family living on a nearby farm. Shane makes a dangerous trip in search of medical supplies.
Dale confronts Hershel after Glenn tells him about the walkers in the barn. Meanwhile, Lori struggles to come to terms with her pregnancy, and Shane tries to teach Andrea how to use weapons.
Glenn tells the rest of the group about the walkers in the barn, dividing them on what to do. Meanwhile, Hershel sets a deadline for the group to leave, unless Rick does a difficult task.
In the aftermath of the barn incident; the group bury loved ones, Beth falls into shock, and Rick and Glenn head out to find Hershel when he disappears.
Rick, Glenn and Hershel come under enemy fire after their encounter with Dave and Tony. Meanwhile, Shane goes after Lori when everyone realizes she is missing.