Scully visits the last surviving MUFON member, Penny Northern, who is being treated for cancer at a medical centre. Meanwhile, Mulder discovers that all the abductees were childless but had been treated at a nearby fertility clinic. When Mulder is called away by Scully, an assassin, the Gray-Haired Man (Morris Panych) arrives and kills Crawford with a stiletto weapon, revealing him to be an alien-human hybrid. After meeting Penny's physician, Dr. Scanlon, Scully elects to begin chemotherapy. Mulder sneaks into the clinic and finds Crawford there, seemingly alive. Mulder and "Crawford" hack into the clinic's computer database and find information revealing Scully has a file there. Mulder sees Skinner and asks to deal with The Smoking Man to save Scully, but Skinner convinces him not to do so.