<P> Pregnant Kathy McCready is undergoing an emergency caesarean . As her husband prepares, the ward is locked down, and the child delivered is seen to be an alien . </P> <P> FBI special agents John Doggett (Robert Patrick) and Dana Scully (Gillian Anderson) meet Duffy Haskell (Jay Acovone), who tells them about his wife--a multiple - abductee who he believes was killed by her doctors upon giving birth to an alien child . He also describes how his wife's cancer was both caused and cured by her abductors . Duffy refers the agents to Zeus Genetics in Maryland, and shows them an ultrasound scan that seems to vindicate his story . As the agents leave, Doggett notes similarities between the case and Scully's history, although he does not yet know that Scully is pregnant . In a flashback, Fox Mulder (David Duchovny) tells Scully that her abduction (in the second season episodes "Ascension and "One Breath") has rendered her infertile, as her ova were harvested for genetic experiments . Mulder later found them in a secret facility (in fourth season's "Memento Mori"), but they were not viable . </P> <P> At Zeus Genetics clinic, Scully overhears a pregnant woman, Mary Hendershot (Saxon Trainor), who is telling her doctor that she does not want to be under his care any more . In order to avoid being seen, Scully hides in a storeroom, finding it full of preserved fetuses that resemble the alien child seen earlier, but she is discovered by a doctor, Dr. Lev . Scully then phones Dr. Parenti, who is dissecting an alien fetus . She asks him to compare her ultrasound scan with the one given to her earlier . Later, while waiting to be attended to by Dr. Parenti, she has another flashback, recalling the time she sought a second opinion about her ova from Dr. Parenti, and was told that her ova might be viable with a sperm donor . In the present, she is called in to be attended to, and she is then assured her scans are in order . Later, Walter Skinner (Mitch Pileggi) and Doggett confront Duffy about threatening letters he has been sending to both Mulder and Dr. Lev . However, when the agents leave, Duffy makes a phone call to Lev, warning him that they are being investigated . In another flashback, Scully asks Mulder to be the donor, to which he happily agrees . </P> <P> Scully is warned by Hendershot, the woman from Zeus Genetics, that their unborn children are in danger . Scully meets Doggett and Skinner, having requested a leave of absence from the FBI . After Doggett leaves, Skinner tries to convince Scully to reveal her pregnancy to Doggett . Scully and Hendershot visit an army research hospital to have Hendershot's labor induced . Whilst Hendershot is being prepped for the operation, Scully asks to have an ultrasound performed on herself . The scan appears normal, but Scully realises the monitor they are watching is simply a video of another woman's scan . Realising they have been tricked, Scully finds Hendershot and the two sneak out of the exam room . </P>

When does scully asks mulder to be a sperm donor
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