Stallone is a hit man who ends up working with a cop to catch some big wig criminals.
This movie is pretty boring, and the cop (Sung Kang) was very poorly cast. He just seemed completely out of place in an action movie, and the writing for his character was pretty piss poor too.
The true shining light in this movie is Jason Momoa. This dude is huge and truly awesome as the main villain muscle. He alone is the only reason to see this film. He even gets to do the Scotty Evil routine only in a serious movie. Good actor, but I fear he'll be typecast due to his size.