Designated Survivor (season 2)

Tom Kirkman is unknown politician who has a place in White House but has no ambitions. His current position suits him because he and his family are out of sight of mass media. If there was an election he was the last candidate for the president post. But he is the person who is to perform the role of the president of the USA. Terrorists finally managed to kill the current president and the most part of the USA politicians and Kirkman is the only one who can be the president.