It is 1991, and although the Iron Curtain has fallen, a resurgent USSR is determined to regain its place as a superpower. The United States is equally determined to prevent this. As international tensions heat up, a group of US Coast Guardsmen stationed in Florida are caught up in the twin shock of a nuclear exchange and an invasion of their country. The story follows them as they struggle to survive and rescue their family members as civilization collapses all around them.