The thing about Discovery is that it's good in everything but the writing. So this episode's extended action sequences and few long expanses of dialogue served to make "What's Past Is Prologue" one of the most watchable episodes to date.
Tagged With mirror universe
Thought it was tough to beat Daenerys Targaryen when it came to absurdly lengthy formal titles? Well, her most Imperial Majesty, Mother of the Fatherland, Overlord of Vulcan, Dominus of Kronos, Regina Andor, Emperor Philippa Georgiou Augustus Iaponius Centarius on Star Trek: Discovery just might. But this being Star Trek, there are reasons for every one of those fancy names.
Star Trek's Mirror Universe is one of - hell, the - most famous parallel universes in science fiction history. In fact, it almost has a timeline of its own as rich as the prime reality of Trek itself. So if you've been confused by all the Mirror-verse happenings in Discovery - and why wouldn't you be? - we're here to help put it all together.
On 6 October 1967, Star Trek delivered an episode that remains the gold standard for parallel universes. Half a century later, "Mirror, Mirror" remains a timeless icon of sci-fi storytelling, and one of the best episodes of Star Trek, full stop. Because as cool as the premise is, it's a reminder of what makes Trek's heroes so noble.