Mulder and Scully, agents of the FBI, investigate a bomb threat and discover a conspiracy involving the government and an alien colonization of Earth. They face challenges, including infected bodies, secret labs, and a mysterious alien ship. Despite opposition and cover-ups, they continue their quest for the truth.

The X Files: I Want to Believe is a crime drama movie with elements of horror and sci-fi. The story follows FBI agents Mulder and Scully as they investigate a series of mysterious crimes involving psychic visions, pedophile priests, and alien technology.