该纪录片考察了未识别的空中现象。 在高级政府官员和美国宇航局宇航员的证词下，哈里·里德参议员说，这“使令人难以置信的可信度”。

In 1989, physicist Bob Lazar broke the story of Area 51 and the US government's work on alien spacecrafts. He blew the whistle, shocked the world, then went silent - until now.

In December of 2017, The New York Times published a stunning front-page exposé about the Pentagon’s mysterious UFO program, the Advanced Aerospace Threat Identification Program (AATIP). Featuring an interview with a former military intelligence official and Special Agent In-Charge, Luis Elizondo, who confirmed the existence of the hidden government program, the controversial story was the focus of worldwide attention.

在这部扣人心弦的系列纪录片中，传奇记者乔治·纳普踏上环球之旅，寻找有关不明飞行物的新证据并调查它们在地球的踪迹。