A man and a woman are trapped by a deadly electrical grid. The man uses his scaly body to shield her, explaining it recognizes his biology but not her human flesh. As the current threatens to fatally burn his bloodstream, he warns her that only his 'Mark' can protect her, though it will cause pain. The woman apologizes. After the act, a separate voice in a lab setting states the 'breeding protocol' has succeeded, revealing 'Subject 0' has bonded with a host for the first time. Later, the man assures the now-pregnant woman in his den that she is safe and will not be taken from him.