The Eden Project (an international project) returns and lands in Georgia at a makeshift runway created by the Rourkes and they form a colony there. The Soviet Union has survived in massive underground shelters and continues their conflict with the Rourke family across the globe. Nazi Germany also survived in an underground shelter in South America but the Nazi regime is overthrown through the efforts of Rourke and his family. The now democratic German colony become staunch allies of Rourke. Iceland's inhabitants survived in hollow volcanoes and join the Rourke family in their battles. A particularly dramatic book, Mid-Wake, details how the United States survived in an underwater colony in the Pacific. A Soviet colony nearby also survived and both colonies have continued the war over the last five centuries. The Chinese survived in three underground cities and become involved in battles as well. The books end with an alliance of the freedom-loving states defeating the evil regime states and peace returning to the Earth.