Mulder contacts Frohike and Byers, who say that Fairfield is known for its animal disappearances and UFO sightings. They also mention Ambrose's gorilla, who is known to communicate using American Sign Language. Meanwhile, Scully follows one of Lang's activists as he sneaks into the zoo, running into Meecham inside. The activist attempts to free a tiger, but after a flash of light, the tiger seemingly disappears. The activist is promptly mauled to death, with the killing captured on his night vision camera. When questioned, Lang denies any responsibility for the death. Ambrose introduces the agents to the gorilla, Sophie, who has been cowering in her cage and expresses an apparent fear of light.