An exceptionally talented undercover policewoman, Grace Flint nearly dies in a botched sting operation. Months later, physically healed but psychologically scarred, she gets an unexpected clue about her attacker, and disappears on a mission of revenge - unaware that she is about to pull the first string that will unravel a vastly complex web of international treachery, extortion, and murder.
She is the best undercover cop in the business, a chameleon who can assume many different disguises. She is driven, tortured by past betrayals. Karl Gröber is a vicious East European money launderer, one of the FBI's 10 Most Wanted criminals. Flint is assigned the task of infiltrating his organisation and bringing him to justice. Going deep undercover, she attempts to pull off an outrageous sting.