There is a top secret U.S. Air Force base in the Nevada desert. The government won’t talk about what is there, but rumors abound. Some even think it houses aliens and UFOs. Discover the secrets of Area 51.

Includes glossary.

UFOs? -- Top secret -- Stay out -- Why so secret? -- Spy planes -- More secrets -- Aliens -- Lazar's story -- UFO or palne? -- Still a mystery.