Beautiful, young Marina Victoria was enjoying her exciting life as a mermaid in a Florida Attraction when they came for her from five miles deep. The world's first civilization is under attack. Living peacefully beneath the sea since before the ice age. The citizens are under siege by escaped space terrorists who kill for pleasure and sport. She is their anointed queen, and they desperately need her help. Marina's family enjoys Presidential protection. The existence of the their civilization under the sea has been a state secret since the days of the Trieste submersible explorations when Marina's grandmother was smuggled to the surface world by a sailor, married and quietly raised her family. By Presidential order, experts from the Kennedy Space Center build a submersible to travel down to the domed city and rescue the citizens under siege. Navy Seals train the visitors who risked their lives coming from the deep to find Marina. Marina's powers become apparent during the training as she assumes her role as Queen. Puerto Rico becomes a state. Members of the domed city become citizens who step into leadership positions. They are confronted by corruption, racism and greed more deadly than the terrorists they defeated as Marina leads her people into the modern world of business and politics.