Shane's deadly sacrifice leads to strange behavior, while the rest of the group contemplate the fine line between living and dying.
While searching the woods for clues, Daryl is seriously injured and set upon by walkers. Meanwhile, Rick second-guesses himself; and Glenn believes he's getting positive signals from Maggie, but then isn't so sure.
Glenn becomes the keeper of a pair of secrets; Andrea develops a new skill and is forced to rely on it during a life-or-death confrontation; Rick uncovers a secret about someone close to him.
A grave threat rears its head from a surprise source; Rick and Hershel work together to avoid a dire situation; and Dale has it out with Shane.
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