《双面女间谍第四季》 是肯·奥林,J·J·艾布拉姆斯导演的作品，发行于2005年（美国），由詹妮弗·加纳,朗·瑞弗金,迈克尔·瓦尔坦,卡尔·卢波利,格雷戈·格伦伯格,米娅·麦斯特罗,格雷戈·格伦伯格,维克多·加博等主演的一部欧美剧。
讲述了：　　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.