About a girl called faith who's a runner (people who deliver messages who can jump from building to building and certain other cool things) and there's a murder, she's trying to find out why and so on cause her sister is being framed since she was there and her gun was used. So now you gotta find out why she's being framed and who framing her.
No, there's about...9 levels...11 if you include training (which is optional) and the prologue, I just completed the level, easiest last level ever...it's even easier than the last level on GOW 2, all I gotta do is run...jump, then it automatically kicks the bad guy outta the helicopter and then thats it, you get a little video after that or whatever and then the credits