[s4e3]: Isolation

is the third episode of the fourth season of The Walking Dead , which aired on October 27, 2013 . It centers on the prison group's desperate response to a deadly flu outbreak and the psychological toll of their containment. Plot Summary

The episode picks up immediately after the discovery of the charred remains of Karen and David. The Walking Dead: Season 4, Episode 3–Isolation [S4E3] Isolation