Consumers love - and live on - their smartphones, tablets and laptops. A cascade of new devices pours endlessly into the market, promising even better communication, non-stop entertainment and instant information. The numbers are staggering. By 2020, four billion people will have a personal computer. Five billion will own a mobile phone. But this revolution has a dark side, hid...。故事是发生在第一集的七年后,上一集里的主人公安尼的妹妹萨曼莎和她最好的朋友科利现在都已经18岁了,他们正计划着一次前往LA的公路旅行。但在路上,他们看到了奇异的景象......。