The year is 1590. Will Revill is back with the British Army as Queen Elizabeth has sent a force to France to support the protestant King Henri IV as a civil war rages between that side and the Catholic League. The unit is about to be recalled home when Sir Thomas Heneage again forces Revill to perform a secret mission. The task is to head to Paris to determine if the English ambassador is in fact a traitor. The mission will not stop there.