A billion dollars in crisp, newly-printed bills - the sum transferred daily from the Bureau of Engraving and Print in the run-up to the launch of a new bill design. The BEP vault is the most secure in the world. No human being ever enters it: not even the President of the USA could gain access. Only pre-programmed robot vehicles pass through the 22-ton, 10-feet thick blast-proof door. The array of technology needed to unlock that door is utterly unparalleled. The transfer operation involves the most heavily- armed convoy ever seen, from M2 Bradleys on the ground to Apache attack helicopters and F-16 fighter jets overhead. Twelve squads of Marines provide close-order protection. Sullivan and her entirely unarmed team plan to steal the cash. All of it. Pritchard and Daniels are the Secret Service agents tasked with reviewing security arrangements to ensure that such a theft is utterly impossible. Only one team can succeed.