Technological advances have escalated Cold War tensions to an all-time high, and undercover KGB operatives Elizabeth and Philip Jennings face the growing threat of discovery. As their assignments grow more deadly, their family is in more danger, and their loyalties are tested like never before.

It is 1987, and an imminent Gorbachev-Reagan nuclear arms summit promises to ease world tensions. But life for the Jennings family is more precarious than ever: Elizabeth's relentless dedication as a KGB agent has dealt a potentially lethal blow to her marriage to Philip, who has left espionage behind. As Philip's friendship with FBI agent Stan Beeman grows, the danger of exposure of the family 'business,' which now includes Paige, reaches crisis...