Al Shines，这位“US race car track circuit”的前冠军，自从失去赞助商罗宾，他的车队组建越发艰难。罗宾选择了Al的不成熟的女儿作为替代。

故事发生在一个北极研究基地里,一组来自美国疾控中心的科学家竭力调查一种神秘的变异病毒。如果这种病毒传播到外部世界,将带来「人类灭绝」灾难性的后果.在阻止这场灾难的同时,他们自己也要面对生死考验。

4400 were taken.4400 were returned.Each has a unique ability.One among them has a message.Anyone can become extraordinary.The risk is great.But so are the rewards.And now there's no turning backThe world will have to deal with us.一个阳光普照的好日子，Tom站在自己的厨房里喝着咖啡。他看了看表，叫Kyle赶快下楼来，说他们快迟到了。Kyle笑盈盈地冲下来，父子俩这辈子也没这么开心过。Tom挥了挥手，桌上的车…