Becoming very boring, this show needs a dramatic shake up.
Started off great and I enjoyed the boat adventure. Now they are stuck in Mexico, the series has gone flat.
Issues that need fixing to make an impact:
Increase gore and violence, there is no where near as much as there should be.
Bring back Daniel, the best character there was.
Bring back the boat and get out of Mexico.
Stop over doing the "Lets play zombie" trick.
Work more on character development, as nobody cares about them.
More action, see first point.