Spring, 1943. The war is turning against Germany, but Hitler isn`t giving up. In a secret bunker deep in occupied France, scientists are hard at work on Hitler`s latest deadly weapon: code name FZG-76.

Back in England Henderson`s boys will need to undergo advanced sniper training if they`ve any chance of infiltrating the bunker. Parachuting into occupied France, they track down a secret dossier filled with invaluable material - and uncover the meaning of the enigmatic code.

For official purposes, these children do not exist.