The show merges casts with AMC's The Walking Dead as walkers attack Jorah and Tyrion. Rick and Coral are confused by the sudden change in their surroundings. Everybody is still glad that Lori and Andrea are dead. Jesse Pinkman smokes Tyrion out to help him relax after the close encounter with death.
The title of this episode is apparently a reference to a prominent quote from the novels. Maester Aemon advises Jon Snow about growing into a man of the Night's Watch, how he must mature into it and make selfless decisions. He therefore repeats to him the same advice he gave his own brother Aegon when he was crowned king: "Kill the boy, and let the man be born."