雙面女間諜第四季是詹妮弗·加納 朗·瑞弗金 邁克爾·瓦爾坦 卡爾·盧波利 格雷戈·格倫伯 主演的一部評分9.0 的影視作品, Five months later. Sydney quits the CIA and joins a Black Ops unit called "Authorized Personnel Only" alongside Dixon, Jack, Vaughn and... Sloane whom for limited immunity is co-operating with the APO. Meanwhile, the truth Sydney found out in Wittenberg endangers her relationship with Jack, and eventually she reveals the awful truth to Vaughn: about her father having Irina murdered over a year earlier.