One month after the first nuclear bomb test in San Antonio, New Mexico, four extraterrestrials were observed inside a UFO. In this incredible investigation, Jaime Maussán interviews the renowned UFOlogist, Paola Harris, who located the witnesses of the crash, giving light to this enigmatic case. José Padilla, takes us to the place where the ship crashed, recounting what he saw: beings with four fingers. Perhaps this ship crashed, due to the dangerous microwave radiation throughout the area. Could this have spurred the high-level conversations which led Albert Einstein and Eisenhower to write a letter to President Truman describing the need to establish protocols of contact with beings?