Every episode from all nine seasons of the award-winning sci-fi series, plus the two films: 'The X Files Movie' and 'The X Files: I Want to Believe'. In 'The X Files Movie' (1998), Mulder and Scully attempt to locate the source of a deadly virus, possibly brought to earth by aliens 37,000 years ago. Their investigation reveals a potential FBI-cover up, brings them into contact with conspiracy theorist Dr Alvin Kurtzweil (Martin Landau) and leads them to the door of the all-powerful, yet anonymous, Syndicate. 'The X Files: I Want to Believe' (2008) begins with the mysterious disappearance of a group of women in Virginia. The FBI calls Mulder (David Duchovny) and Scully (Gillian Anderson) back to duty to investigate and they are led to a priest, Father Joseph Crissman (Billy Connolly), who is having strange visions. Father Crissman's unusual apparitions subsequently lead Mulder and Scully to a bizarre secret medical experiment which may have a connection with the women's disappearance.