How long do you think you could hold off a zombie invasion?
Well, the residents of Alexandria will have to hope they can hold out a lot longer than that.
On this Sundays episode ofThe Walking Dead, the community will be under siege for more than 49 hours.

Jackson Lee Davis/AMC
And you might watch it all play out in a matter of minutes.
It begins at 6 a.m. with Carol (Melissa McBride) waking on a seemingly beautiful morning.
(But whats she doing with that bottle of pills?)
A few walkers stroll into view.
Not something our heroes cant handle.
But then some more appear.
And then even more.
Enough that Aaron (Ross Marquand) almost loses his life.
But why are they coming?
This is her, says Carol, withherbeing Alpha (Samantha Morton).
That would seem to make sense.
Could this be payback for crossing her border?