當神秘專線響起，負責接聽的你，愿意付出多少代價完成任務？ 該劇改編自馬修·奎克的同名小說，第一季結尾，FBI基層探員彼得·蘇德蘭（加布里埃爾·巴索 Gabriel Basso 飾）因拯救總統而立下大功。本季中，他將正式成為暗夜行動的一分子，然而，加入這個絕密組織，也意味著投身危機四伏、爾虞我詐的世界。
When the body of his oldest friend is found buried in a shallow grave, Dan, a small-town cop, seeks answers from a volatile Hermit who may have been the last person to see his friend alive.