Deliberate mistake: At the end, a line apparently cut earlier creates slight confusion. Nick says to Nat, "When LaCroix asked you why?" (why save vampires). In the earlier scene as shown, the elusive LaCroix spoke only briefly to Nat in the lab, and never asked her that question. (00:42:20)
Factual error: Nick tells fellow vampire Aristotle, "You still owe me for that time at the Battle of Hastings." Nick was brought across in 1228, or so the intro told us every week. The Battle of Hastings, as any British school kid knows, was fought in 1066, over 100 years before Nick's mortal birth. (00:29:30)
Natalie: Nick, I'm in the habit of believing 10 unbelievable things before breakfast every day, starting with you.
Trivia: As Nick and Schanke are leaving the station, Nick turns back to give a handcuffed suspect being wrestled in the door by a cop a "where have I seen that guy before?" look. This was an in-joke: the collared criminal was series star Geraint Wyn Davies' brother. (00:19:40)
Question: Two questions. 1. Was there some kind of contributing factor that made Nick want to be human again and if so what was it? 2. In one episode Janette is discovered to be human again. How did she accomplish this?
Answer: Nick was sick and tired of being an immortal bloodsucker. He wanted to be human, fall in love, get married, have children, grow old and die. As for Janette, according to her, she fell in love and the passion she felt "cured" her of her blood lust.