Mulder: Did they give Agent Scully this disease?
Did they do this because of me?

Mulder continues his search for a cure for Scully's illness even as her genetically altered DNA takes her to the brink of death. Scully's DNA comes into play once again when it proves that she is somehow the mother of a little girl named Emily, an incident that could only be related to her abduction years earlier.

But in the end it is a young boy named Gibson Praise whose body may actually contain the elusive proof Mulder has been searching for so desperately.