Aliens Uncovered: UFOs Over Vegas

I wrote a review for the Aliens Uncovered series on IMDB. I suggest reading that. This appears to be the fourth film in the series, but the data on the order is obscure at best. The think the order for the series is as follows, Origins, The Golden Disk, ET or Manmade, UFO's Over Vegas, Borrowed Time, and The Lost Race. I have reached out via Reddit for a clearer order for the films. But Clive preloads the next film at the end of every film that is the order they appear to be.