Having learned about a terrorist act, monstrous in its scale and consequences, being prepared by Al-Qaeda, the British and American intelligence services immediately begin to act, but... They know nothing: neither when, nor where, nor what kind of attack it will be. There are no sources in Al-Qaeda, and it is impossible to infiltrate an agent. Unless... They look alike - Izmat Khan, a Guantanamo Bay prisoner and former Taliban army commander nicknamed the Afghan, and Colonel Mike Martin, an Airborne veteran - dark, thin, born and raised in Iraq. In an attempt to prevent a disaster, the special services are trying to do the impossible: to pass Martin off as Izmat Khan...