Have you ever wondered why the human body looks the way it does? Why our hands have five fingers instead of six? Why we walk on two legs instead of four?　　It took more than 350 million years for the ...

在一个名为高山湖的美国小镇，静谧的夜幕下响起刺耳的警笛女警长梅瑞狄斯·赫尔南德兹（莎拉·玛卢库·莱恩 Sara Malakul Lane 饰）抓住了在逃罪犯克林特·格雷（杜夫·龙格尔 Dolph Lundgren 饰），此后收养了克林特年幼的女儿卡莉（Lily Brooks O'Briant 饰）。如是过了五年，梅瑞狄斯和卡莉亲密无间，形同母女，当得知克林特即将出狱并且法院要将卡莉还给对方...

未删减版Without warning, millions of mysterious alien "doors" suddenly appear around the globe. In a rush to determine the reason for their arrival, mankind must work together to understand the ...