This 60-million-dollar science fiction suspense drama (marketed with an additional 25 million dollars), was adapted from the popular TV series The X-Files -- arriving in theaters while the Emmy-winning series was still being aired, continuing plot threads familiar to many of the series' 25 million viewers, and featuring several familiar recurring characters introduced during the previous five TV seasons. In 15,000 B.C., a strange creature attacks a caveman. Cut to present day, when a boy at the same North Texas spot falls into a pit and is contaminated by a black substance. When a bomb threatens the Dallas Federal Building, special FBI agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) locate the device but are unable to prevent the explosion. The agency blames Mulder and Scully for the disaster, subjecting them to lengthy interrogations while trying to sever their partnership. In a bar, conspiracy theorist Kurtzweil (Martin Landau), a friend of Mulder's father, tells Mulder about the group behind the explosion, the cover-up of the boy's death, the bodies of four infected rescue workers removed from the Federal Building, the secret government, and the forthcoming plague. Mulder and Scully set out to find answers, and their investigation becomes a foray into the fantastic.