After a tour of duty in the British Army, twenty-six-year-old Charlie Fox has excellent markmanship and a sixth sense for danger. She also has an ex-lover, Sean, who runs a protection agency and makes her a business offer she can't refuse - to go to the United States and look after teenage son of a high-profile computer whiz. The assignment should have been a cakewalk. But that's before Charlie and her charge, Trey, visit a Florida amusement park and encounter armed kidnappers who are dead-set on getting their way - and taking Trey with them. The last thing anyone expects is a determined attempt on Trey's life. But soon Charlie discovers that not only has Trey's father gone missing, Sean and his entire bodyguard team have fallen off the map as well. Now it's up to Charlie - alone in an unknown territory, with no one she can trust - to protect Trey, and herself, against all imaginable odds before the enemy strikes again.