失控出轨的列车，让雪梨这个国际都市陷入混乱，这只是第一步。生化武器袭击导致坠机的幸存者在数分钟内暴毙，而且以气体传播的攻击正在迅速蔓延…...

　　Cecilia and Emma were tween-age BFFs who were going to grow old together and never let anything come between them, until Alex arrived on the scene. Twelve years later, Cecilia is a successful social...

　　An isolated town in Alaska where a contamination occurs after a minor meteorite explosion....

塞西莉亚和艾玛是十几岁的好朋友，他们会一起变老，永远不会让任何事情妨碍他们，直到亚历克斯出现。12年后，塞西莉亚成为了一名成功的社交媒体影响者，她梦想成为一名独立的现代千禧一代女性……直到她十多年来第一次遇到艾玛。艾玛邀请塞西莉亚离开她的单身汉…...