is born. Billy Miles (Zachary Ansley), a multiple abductee who disappeared on the same night as Mulder, is returned deceased but his dead body is resurrected and restored to full health. Mulder also returns from death, with Scully supervising his recovery. Fully rejuvenated, Mulder investigates several X-Files, against orders to do so, but soon gets fired, leaving Doggett in charge of the cases. Mulder continues to provide input in an unofficial capacity. 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. Themes The eighth season of The X-Files takes place in a science fiction environment and employs the common science fiction concepts of strongly differentiated characters fighting an unequivocally evil enemy, in this case, the alien Colonists. The first episode of the season, "Within" explores "loss", "loneliness" and "pain" after the disappearance of Mulder. "Per Manum" included basic themes common in the series, such as "dark, foreboding terror", an "overriding sense of paranoia", and "the fear of the unknown", among others. Later on, death and resurrection emerged as a major sub-theme during the season, starting with "The Gift", wherein John Doggett is killed and resurrected, and later in "Deadalive" when Mulder is brought back to life after apparently being dead for three months. This sub-theme would continue well into the ninth season. The main story arc of the season dealt with the idea that, at times, humanity is a