World War II ends - the Cold War begins. Incredibly, Bermuda's geopolitical importance increases. Marauding Nazi U-boats are replaced by Soviet nuclear submarines whose missiles threaten the US East Coast. Bermuda becomes the most important and secret early warning post in the world, using a new technology called SOFAR - Sound Fixing and Ranging.

The Russians will do anything to find out what the Americans are up to in Bermuda, including sending their assassins to "persuade" wayward local collaborators.

The intricate conflict of spy versus counter spy, stretching from California, to London, and Moscow, pivots around a Bermuda emerging from its own era of segregation. The story ultimately intersects with the most terrifying chapter of the Cold War - the Cuban Missile Crisis.