Antibodies (The X-Files, 5)

When a disease-ravaged body is found in the burned ruins od a federally funded genetic research lab, Agents Fox Mulder and Dana Scully fear that a deadly, man-made plague is on the loose. As the FBI agents investigating the "X-files" bureau cases labeled unsolvable- Mulder and Scully pursue the truth wherever it leads, even into the labyrinthine corridors of their own agency ... and beyond.