Based on the Emmy-award winning tv series, special agents Mulder and Skully investigate ancient Mayan ruins for paranormal phenomena. Meet Mulder and Scully, FBI: the agency maverick and the female agent assigned to keep him in line. Their job is to investigate the eerie unsolved mysteries the bureau wants handled quietly but quickly, before the public finds out what's really out there . . . and panics—the cases filed under "X". In the most ambitious and exciting X-Files adventure to date, Mulder and Scully fly to the Yucatan jungle to investigate a missing team of archaeologists. Their exploration leads to a strange electronic signal coming from beneath ancient ruins—a signal aimed upward, at the stars. . . .