Pilgrim

Pilgrim is the code name for a man who doesn't exist. The adopted son of a wealthy American family, he once headed up a secret espionage unit for US intelligence. Before he disappeared into anonymous retirement, he wrote the definitive book on forensic criminal investigation. But that book will come back to haunt him. It will help NYPD detective Ben Bradley track him down.

If, like Kane, you're a Denied Access Area spy for the CIA, then boundaries have no meaning. Your function is to go in, do whatever is required, and get out again - by whatever means necessary. You know when to run, when to hide - and when to shoot. But some places don't play by the rules. Some places are too dangerous, even for a man of Kane's experience. The badlands where the borders of Pakistan, Iran and Afghanistan meet are such a place - a place where violence is the only way to survive.