Shot opens in Atlanta: a group of walkers are feasting on what looks like Rick's horse, or what's left of it, when they're startled by the sound of a helicopter flying overhead. The horde migrates over several days, weeks, a great distance, and eventually comes to a fence. The fence bows and breaks under the relentless forward motion of the walkers; the herd presses on. Wandering aimlessly in the forest, the walkers turn as a gunshot goes off like a beacon, leading them to dinner. Soon they are closing in on Rick and Carl, as they leave the scene of Shane's murder.Daryl and Glenn arrive back at the farmhouse. They explain that they heard a gunshot, and share their confounding findings about [url deleted] they walk back to the house, Carl asks Rick about what happened to Shane exactly. Soon after, they notice the walkers bearing down on them, and it's not long before they are overtaken and have to make a run for the barn. Back at the house, the rest of the survivors are just figuring out that Carl is missing and walkers are approaching. Lori is panicking. Herschel passes out the guns.The horde is making quick work of the barn. Rick dumps gasoline everywhere, busts open the door to lure the zombies inside, and climbs up to the loft with Carl. Carl drops a lighter into the gasoline-soaked hay, igniting everything in sight. Meanwhile, the men and Andrea shoot from their cars in a futile attempt to corral the herd and buy time.Finally, Daryl figures out that Rick and Carl must be in the barn, and instructs Jimmy to drive the RV to the barn to rescue them. Rick and Carl manage to barely escape, while Jimmy is devoured inside the RV. Blood is everywhere, coating the windshield.The survivors are starting to run out of ammo. The horde is too large. The women hold hands and make a run for it as Herschel makes a last stand for the farmhouse. They are just about clear when Patricia is attacked from the side and is devoured while Beth is still holding onto her.Carol is headed off by a few walkers and backed into a corner with nothing but a plank of wood to defend herself. Andrea saves her but is attacked from behind and gets pinned under a walker.