The squad members investigate the attempted rape of a female barrister who was apparently saved by a vampire. They find that she has been desperately trying to have a child, and has been been impregnated in-vitro with her late husband's sperm, but the pregnancy is not normal. Meanwhile, Jack has disappeared without trace and Kirsty tries to get Jacob, a journalist, interested in investigating his disappearance.
In 2000, the Fox Network in the United States developed an ongoing series version of "Ultraviolet" starring Eric Thal, Joanna Going and Mädchen Amick, with Idris Elba reprising his role from the British series. However, the American version did not progress beyond an unaired pilot episode.