Plot summary for "UFO Files" Mexico's Roswell (2005) Coyame, Mexico is a small town not far from the US border. It's home to three thousand people and possibly the best-kept secret of all-time. In August of 1974, the USA military was tracking a mysterious object over Mexico; then suddenly it disappeared from radar near Coyame. At the same time a civilian plane headed in the opposite direction is reported missing...