"Courtland Gentry is a good man. But he's a great assassin...To those who lurk in the shadows, he's known as the Gray Man. He is a legend in the covert realm, moving silently from job to job, accomplishing the impossible and then fading away. And he always hits his target. Always. But there are forces more lethal than Gentry in the world. Forces like money. And power. And there are men who hold these as the only currency worth fighting for. And in their eyes, Gentry has just outlived his usefulness. But Court Gentry is going to prove that, for him, there's no gray area between killing for a living and killing to stay alive...."--p.[4] of cover.

Jack Ryan has only just moved back into the Oval Office when he is faced with a new international threat. An aborted coup in the People's Republic of China has left President Wei Zhen Lin with no choice but to agree with the expansionist policies of General Su Ke Quiang. They have declared the South China Sea a protectorate and are planning an invasion of Taiwan. The Ryan administration is determined to thwart these Chinese ambitions, but the stakes are dangerously high as hundreds of Chinese anti-ship missiles thwart the US Navy's plans to protect the island. Meanwhile, Chinese cyber warfare experts have launched a devastating attack on American infrastructure. It's a new combat arena, but it's every bit as deadly as any that has gone before. Jack Ryan, Jr. and his colleagues at the Campus may be just the wild card that his father needs to stack the deck. There's just one problem: someone knows about the off-the-books intelligence agency and may be ready to blow their cover sky high.