A brother and sister are sent to their grandparents' remote Pennsylvania farm for a week, where they discover that the elderly couple is involved in something deeply disturbing.
The New York office of the FBI brings to bear all their talents, intellect and technical expertise on major cases in order to keep their city and the country safe.
In an uncharted future, two hardened souls meet and confront each other with the things they have done and what they have become.
