Nearly a decade ago Agent Kate Drew left home to neutralize a biochemical weapon in Scotland. While her assignment was a success, Kate died in a car accident. Or so we were told. Now the echoes of a similar plot reverberate and it's up to you, as detective Nancy Drew, to thwart the sleeper cell and expose the truth about your mother's tragic demise. Source: Wikipedia, "Nancy Drew: The Silent Spy", available under the CC-BY-SA License.