It is 1959 and the Canadian Navy is at the forefront in the area of anti-submarine warfare systems research and development. The RCMP has received information from the FBI in theStates, warning of a possible Soviet plan to send agents to the port city to steal whatever they can. Thompson, who is just back from an assignment in the Northwest Territories and the DEW Line network is not overly happy about the assignment. He was expecting a well deserved week's vacation with the love of his life, not another mission, particularly down in Atlantic Canada. When he arrives he quickly learns that security, as such, seems sketchy at best and is run by a British naval officer, Jules Swanson, but on closer examination he sees that it is much more comprehensive. Over the course of a week, he uncovers several people working for the navy who are also working for the Soviets and soon gets a line on the agents sent here. Everything is resolving itself nicely until the day Pavlo Palyvoda arrives.