"When her Russian professor gives her an impossible puzzle, Alex discovers he has a secret - one that will catapult her into a life of cryptic codes and covert missions. Of course, conducting secret ops would be easier if she weren't trying to impress her handsome new running partner. As if love weren't hard enough already, now Alex is trying to find it while dodging bullets and going undercover. One thing is for certain, whatever happens will be forever etched into her memory. And some things are better left forgotten."