一批毒品在警方押运途中被一伙蒙面歹徒劫夺，三名随行警员被害，种种迹象显示警方内部有人走漏消息。蒙面团伙的首领John Corbett成了AC-12的新一任对手，但他还有不为人知的另一重身份……
一位单亲母亲，带着一儿一女(“汤姆·里德尔”弗兰克·迪兰和艾丽西亚·戴伯南·凯瑞饰)，联手男主肖恩(克利夫·柯蒂斯饰)一起末日求生。剧集故事发生的时间与《行尸走肉》第一季相同，不过故事发生地在洛杉矶。
The fifth-year residents return for the first day of a year that will make or break their careers: Meredith faces the consequences of tampering with Derek's clinical trial and is terminated at the hospital; April tries to step up to the plate as Chief Resident in the wake of a giant sinkhole in the middle of Seattle; and Cristina and Owen are still at odds over their drasticall...
该剧设定在一辆格拉斯哥到伦敦的卧铺火车上，火车上发生危机并迅速升级，两位陌生人必须合作拯救车上的乘客。
