Pierce Brosnan as a retired spy. But (in case you were wondering) not particularly Bond-like.
His character is Peter Devereaux, living the quiet life in Switzerland, retired from the CIA after a botched security operation led to the death of an innocent bystander. We don't get to see much of that quiet life, though, because he's called back into action to extract Natalia, a CIA spy, planted in the inner circle of the slimy Russian pol, Arkady Federov.
The plot immediately gets very twisty. There are more than two sides, and they are all trying to kill each other. It's not bad guys vs. good guys, either: it's pretty much bad guys vs. even worse guys. The Macguffin is the elusive "Mira", a Chechen refugee who has damning information about Federov. And there's also a subplot involving Devereaux's ex-protégé, Mason, learning how to be as deadly as Devereaux was. Will he be Devereaux's undoing?
Also un-Bondlike is the R rating for "strong violence including a sexual assault, language, sexuality/nudity and brief drug use." Very gritty unpleasant stuff.