Project Blue Book- Episodes 7 to 10

The last four episodes of the History channel series Project Blue Book have been aired; including a television run in the UK. What are they about and what can they tell us about the real UFO phenomenon? See: https://www.imdb.com/title/tt6632666/.
See here for background: https://hpanwo-tv.blogspot.com/2019/02/project-blue-book-episodes-3-to-6.html.
And: http://hpanwo-tv.blogspot.com/2019/01/project-blue-book-livestream.html.
And: https://hpanwo-radio.blogspot.com/2019/05/programme-324-podcast-dave-altman.html.