MM 54

In a flashback, the mysterious woman, Martha, is forced to kill her husband after he turns. After burying him, she begins to lose her mind, mumbling to herself. Martha begins to kill various survivors who are leaving the supply boxes at mile markers.

In the present, Martha attacks the semi-truck with the SWAT guns. After running out of ammo, Martha flees in the SWAT truck, but not before being wounded by a gunshot from Wendell. Morgan and everyone escape the semi-truck and it explodes from leaking fuel. The noise attracts a herd of Infected and the group goes to a nearby hospital. As the herd enters the hospital, the group goes to the top floor and they split into group to barricade the other stairwells. Believing the barricades won't hold, the group goes to the roof via the elevator, minus Althea who went on her own to start the generator to fix the elevator. On the roof, June checks on Jim's injuries and discovers he has been bitten by an Infected. Meanwhile, Alicia and Charlie continue their trek and come across a lake where they find John Dorie's hat.

The episode was seen by 1.87 million viewers in the United States on its original air date, below the previous episodes ratings of 1.71 million viewers.[2][3]