When Mulder and Scully investigate a possible UFO crash site, Mulder is arrested and meets a man in jail obsessed with UFOs. When Mulder is released, he goes back to the crash site to see if there was a government cover-up operation.
Clark is temporarily blinded but develops super hearing to compensate for his lack of sight. He struggles to master his new power.
Mulder is assigned a mysterious murder case in New Jersey, and Scully discovers a strange worm-like creature slithering inside the corpse.
Oliver is promoted to Acting Staff Sergeant and a new rookie joins the force.
Mulder and Scully track a serial killer whose gruesome MO includes leaving many victims but few clues.