The 1st Assassin

I once worked for the government, going into missions that never officially happened, killing enemies we never officially killed. They gave me a bunch of medals, partly for doing my job well, mostly to keep my mouth shut. I still work for the government, but now I ride a desk, barely tolerated by my boss, barely tolerating myself. My world is turned upside down when I am put on a task force investigating an assassination plot against the US President. Nothing is as it seems, the enemy always seems to be one step ahead of us, and I must keep myself and those I care about alive long enough to get to the bottom of this conspiracy. The clock is ticking, the body count is mounting, and the assassins never stop coming.