From New York Times bestselling author Jeff Abbott... An undercover agent must capture America's greatest traitor.

Sam Capra and his thirteen-year-old son, Daniel, are living a quiet life in Austin, Texas, from where Sam runs a collection of bars and nightclubs around the world for America's most secret espionage agency, known as Section K.

But a shocking revelation will uproot everything that Sam has been trying to build: Markus Bolt is missing.

Having turned over allied agent names and military secrets to the Russians, Bolt fled to Moscow when he was discovered. But now a trusted source inside the Kremlin tells Section K that he has vanished, without a trace.

Sam is charged with watching Bolt's abandoned American daughter, Amanda, and determining if she's had any contact with her father. But as the search for Bolt grows ever more dangerous, Sam faces a rising threat born of long-ago secrets - one that could change his and his son's lives forever.

An utterly enthralling espionage thriller from the international, multi-million copy bestselling author, full of suspense, action and a twist that will leave you reeling.