The Third Millennium team visits remote places where there were once huge and powerful radar systems that may have led to the crash of the extraterrestrial ships in New Mexico. These systems were so powerful that they endangered commercial aviation and the health of those who operated them. Jaime Maussán accompanies important UFO investigators to these secret bases, which were only recently discovered through the investigation of military documents. In addition, Jaime revisits the FBI memo recapitulating the three entangled UFO cases and giving us a new vision of what happened.