A mysterious AI-controlled sub in the Black Sea, a sleeper agent in the Pacific and a gang of master international hackers threaten to throw the United States into chaos in the latest novel in the bestselling Net Force series.

America may seem safe from within. But far beyond its borders, a new enemy is rising: a global organisation that aims to destroy the country's cybersecurity and wreak havoc on the nation.

The president has tasked the new intelligence agency, Net Force, with sniffing out and putting an end to these threats. Their investigation reveals a plan that could trigger a war — one that will leave the US devastated.

Their only option is to strike.

Just as Net Force finds and cuts off one branch of the enemy network, another is revealed. Through the streets of Beijing and New York, a secret city on the Crimean Peninsula, and the dark, abyssal depths of the South China Sea, they must race to root out the source of the attack and discover who really is behind it...before it's too late.