Charleston is the current location of the Continental Congress, the new government of the United States. It is also where the heads of the military and law making bodies are. The continental congress sent out four pilots out to find and tell more groups of survivors about Charleston and where to regroup. Avery Churchill was one of the four pilots sent out, she said her mission was to take her north through New York and Canada then to Greenland and to Iceland and then finally to Europe and spread the word. There was, however, doubt of this claim as such a large group of humans would theoretically attract a skitter attack. Churchill failed to explain how this had not yet occurred, and as Weaver pointed out to Tom the 2nd Mass. had been offered paradise before only to discover a trap. Despite this, the 2nd Mass. decided to go to Charleston to join the new government.
In Death March the 2nd Mass. finally arrives in Charleston only to find the city in ruins. The 2nd Mass. later learns from Colonel Porter, now of the 1st Continental Army, that the ruins are just a cover and that there are indeed survivors living in the City.
The Safe Haven is underground in a Structure belived to have been completed around the time of the attack for use as a shoping Mall .It Houses 3000 people, doctors ,soldiers and children and is attempting to become self sufficient in food production with hydroponics.