Save the Last One (2011)

Hershel tells Lori and Rick that he might need to perform Carl's surgery without a respirator if Shane and Otis do not return soon with the necessary medical supplies. Daryl and Andrea return to the forest to find Sophia, where Daryl shares a childhood memory from when he was lost in the woods as a child. The two then come upon a zombie hanging from a tree where he had attempted to kill himself before transformation and ended up having his legs eaten; Daryl kills the zombie, but only after Andrea agrees to answer his question concerning whether she wants to continue living or kill herself. Glenn and T-Dog arrive at the Greene home, where T-Dog's injury is treated while Glenn and Maggie talk about faith. Lori contemplates letting Carl die to end his suffering from living in the world as it now is, while Rick holds to the belief that Carl may yet live in a better future. Meanwhile, Shane and Otis fight to escape the high school, only to face more walkers at every turn. Just as they are about to run out of ammo, an injured Shane incapacitates Otis, so he can escape the walkers. Shane returns alone to the Greene home with the critical medical supplies just in time for Carl's surgery. Shane misleads everyone about Otis' death and shaves his head to destroy the only clue that he was responsible for having shot Otis in the leg.