Vigil

DCI Amy Silva is assigned to investigate the death of a crew member aboard the nuclear submarine HMS Vigil, but the case soon connects to the unexplained disappearance of a Scottish fishing trawler. Working with DS Kirsten Longacre on shore while the investigation continues at sea, Amy faces resistance from the Navy and British security services. As the two police officers examine both incidents, they uncover signs of a conspiracy reaching into the country’s national security.