一架从上海飞往北京的民航客机即将起飞，在这次航班上，机长李嘉棠（邵兵 饰）和乘务长妻子丘叶华（徐帆 饰）的婚姻正陷入问题，即将辞职结婚的空姐舒骏（池华琼 饰）静静等来了自己的最后一次飞行，而形形色色的乘客们：害怕耽误工作任务的魏朝成（魏宗万 饰）、自视甚高的孟凡（林栋甫 饰）等等，也都各怀心事踏上了旅途。然而起飞不久，李嘉棠发现起落架故障无法放下，这意味着飞机无法正常降落，他迅速向地面指挥报告了这一情况。工程师刘元（尤勇 饰）担任地面总指挥，与李嘉棠在市长等领导亲临现场的关注下，尝试了多种应急方案，但最终无法排除故障，国外公司传来的资料也无法应对这种特殊情况。在飞机燃料只能支持两个小时的前提下，李嘉棠等人只能选择紧急迫降，市长与各部门竭尽全力降低事故可能，然而这次迫降的难度毕竟太大……

Nada, a down-on-his-luck construction worker, discovers a pair of special sunglasses. Wearing them, he is able to see the world as it really is: people being bombarded by media and government with messages like "Stay Asleep", "No Imagination", "Submit to Authority". Even scarier is that he is able to see that some usually normal-looking people are in fact ugly aliens in charge of the massive campaign to keep humans subdued.