In the 50th anniversary of the Ufology, this documentary analyze the mystery and the reality of the one of the big enigma of the 20th Century: the UFO. Who are this visitants from the outer space? Are they dangerous, or come in peace? Why not directly appear? With interviews to witness of the UFO's sighting and military's documents, this investigation try to prove what it's true and what is illusion, watching the true behind the military concealment what surround this UFO's cases and looking beyond of the UFO's sighting.