该剧设定在主线剧情的五年之前，海豹突击队员本·爱德华兹踏入了中情局的黑暗战美剧播器美剧24小时第四季。当他一步步走入灰色地带，就越发难以抵挡内心日益觉醒的黑暗冲动。每个人体内都住着两头狼——一光一暗，相互争斗。最终胜出的会是哪一头？...

　　U.S Postal Inspectors are called in when a  suburban couple are killed by a mail bomb. Suspicion immediately falls on the couple's  es...