Thunder Point

Discovering a World War II briefcase while scuba diving was the worst day of Henry Baker's and his daughter's life. The Fuhrer-sealed briefcase is of major interest to hard-nosed Brit Brigadier Charles Ferguson and a US hitman sent to kill Baker.
with her father dead Jenny Baker now has the briefcase, whose contents hold the key to resurrecting the Fourth Reich - the Windsor Protocol. Smart criminal Sean Dillon is sent by Ferguson to prevent the Windsor Protocol from falling into Nazi hands and quickly finds himself at the top of everyone's hit list.
Through hair-raising twists and turns, the free world hangs in the balance as the new Nazi regime waits for the return of the Protocol.