A peaceful cricket match on a warm summer's day turns to murder and mystery, as the star player Aaron Decker lies dead in his bed, his girlfriend sleeping soundly beside him. The case takes on a new twist with links to the disappearance of a German U-Boat and a British warship in 1945. With the mysterious Aegis Institute hovering in the background of the investigation, D.I Andy Ross and his team find themselves in their most complex case to date. With events in Britain, Germany, the U.S.A and a secret submarine base in Canada all involved, Ross and his team need to work together with international law enforcement agencies and a respected German historian to not only solve the murder of Aaron Decker, but the strange case of U3000's last voyage.