Rourke has made it to safety after stopping the Maoist cult from destroying the world. Now he searches for Natalia and his daughter Anne who are missing after crashing into the ocean. He believes that they were rescued by the Americans of Mid-Wake and attempts to make contact. He does contact them and in the process gets involved with their war with the Underwater Soviets. The island of Iwo Jima is a Mid-Wake training ground for surface warfare and has been discovered by the Soviets. After brutally executing the marines and sailors on the island Rourke makes a plan for revenge. He will steal intact one of the Soviets massive Island Class submarines.
So now Mid-Wake is starting to play a more prominent role in the war. The Underground Soviets have developed a portable particle beam weapon that could change the outcome. They also plan to ally with the Underwater city greatly expanding the threat. The Soviets are also making great gains in potentially overrunning Iceland and the Eden base. Another great entry in this series.