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.
A tip from Krycek leads Mulder and Scully to a Martian meteorite fragment containing an alien life form.
Mulder and Scully continue investigating a smuggler while wrestling their way out of a web of intrigue.