Evan Smoak is a lone wolf operator. It goes with the territory for a former off-the-books government assassin. He certainly can't afford to go up against one of the few people he likes and trusts in this world.

But Tommy Stojack, a gifted armorer and gunsmith whom Evan relies on, has crossed a line. And when Evan confronts him, instead of clearing up a deadly disagreement, he comes under attack. Now it's war.

Tommy's got problems of his own though. He promised a dying comrade that he'd be there for the man's son and now the boy's in a world of trouble. The very last thing Tommy needs is Evan showing up with vengeance on his mind.

The scary thing? Evan isn't even the most dangerous threat to arrive on the scene . . .