The mysterious disappearance of a Scottish fishing trawler and a death onboard a Trident nuclear submarine bring the police into conflict with the Navy and British security services.

The mysterious disappearance of a Scottish fishing trawler and a death on-board a Trident nuclear submarine bring the police into conflict with the Navy and British security services. DCI Amy Silva leads an investigation on land and at sea into a conspiracy that threatens the very heart of Britain's nuclear deterrent.—Happy_Evil_Dude