Summary: Alexa Stone is a courageous young teenage girl, born into the perilous life of an organization called the X’s. The X’s are a dangerous group who assassinate criminals who were let go into the society and harm innocent people. While Alexa and her companions work to keep Brooklyn safe there is a great threat immerging. This new enemy is the first threat to ever come against the X’s who are very much feared. As Alexa works to rid the X’s of this dangerous threat she unravels disturbing secrets that have been kept from her and she begins to question if she can trust anyone anymore. Join Alexa Stone on this action packed, suspenseful journey that is her life as she learns that you cannot trust everyone; that not everyone is who they seem.