Tara, a CIA agent, undergoes an operation that allows her to genetically morph into different people via DNA injections. This enables her to go into any country and "fit in" for any mission. However, when her dad dies mysteriously, Tara begins to question her superior/ controller, Hype, as she wades through treacherous international missions surrounding stolen minerals and nucl...。一个异形在美国流窜,为了得到它想要的,它杀掉所有挡它路的人,并且用他们的身体作为新的藏身之所,它不断追寻的是生命的能量,然而另一个借用了一个死去的FBI探员身体的异形对它紧追不舍,无数无辜的人们在这场追击中丧生。