Reluctantly accepting Krycek's assistance, Mulder, Doggett and Skinner learn that an alien virus recently created in secret by members of the United States government has replaced several humans, including Miles and several high-ranking FBI personnel, with so-called alien "Super Soldiers". Krycek claims that the soldiers are virtually unstoppable aliens who want to make sure that humans will not survive the colonisation of Earth. They have learned that Scully's baby is a miraculously special child and are afraid that it may be greater than them. They have only recently learned of the baby's importance, which is why Krycek told Skinner to kill the unborn child earlier. When Miles arrives at the FBI Headquarters, Mulder, Doggett, Skinner and Krycek help Scully to escape along with Reyes who drives her to a remote farm. Shortly after Skinner kills Krycek, Scully delivers an apparently normal baby while the alien super soldiers surround her. Without explanation, the aliens leave the area as Mulder arrives. While Doggett and Reyes report to the FBI Headquarters, Mulder takes Scully and their newborn son, William, back to her apartment.