What's Past Is Prologue
Star Trek: Discovery Season 1



Critic Ratings: 18
Critics Consensus

Star Trek: Discovery's 13th episode shows that the show is capable of delivering shocking twists and exciting fight scenes, all while paying homage to its predecessors.

Episode Info

Lorca plans to move forward with a coup against the Emperor, propelling Burnham to make a quick decision to save not only herself, but the U.S.S. Discovery.


Jason Isaacs
as Captain Lorca
Michelle Yeoh
as Captain Georgiou
Doug Jones
as Lt. Saru
Shazad Latif
as Lt. Tyler
Anthony Rapp
as Lt. Stamets
Mary Wiseman
as Sylvia Tilly
Rainn Wilson
as Harry Mudd
Terry Serpico
as Brett Anderson
Rekha Sharma
as Commander Landry
Sam Vartholomeos
as Ensign Connor
Wilson Cruz
as Dr. Hugh Culber
Show More Cast

Critic Reviews for What's Past Is Prologue

Could we be looking at parallel universes and time travel in the first season of Discovery? If we weren't having such fun, we'd be getting whiplash.

Jan 28, 2018 | Rating: B+ | Full Review…

This is a well-directed episode. I keep praising the show's pacing because it's one of the few things I feel like I can praise, but even while the overall narrative construction and sense of coherent world aren't great, the pacing here is good.

Jan 28, 2018 | Rating: B | Full Review…
Top Critic

Much of this episode is straight-up action, with two surprisingly well-choreographed battles between Lorca and Georgiou's forces - indeed, good fights have become an unlikely signature of STD.

Jan 30, 2018 | Full Review…

This episode moves at a nice clip, with some great fights and acting. It's whenever anyone starts pontificating, reminding us that a lot of what's happening doesn't match up to the rest of the season, that it falls apart.

May 11, 2018 | Full Review…

Everything seems to be coming together for Star Trek: Discovery plot-wise as we head into the final two episodes of the season.

Jan 28, 2018 | Rating: 8.9/10 | Full Review…

For those taking notes, the latest episode of Star Trek: Discovery and its title showcased serious tributes to its predecessors. Not just one, but several.

Jan 28, 2018 | Rating: 3.5/4 | Full Review…

The show's decisively got its hook for the next episode.

Oct 7, 2019 | Full Review…

Star Trek: Discovery has surprisingly killed off several major characters in its still-young run, but none were more surprising than last night's big death.

Jan 29, 2018 | Full Review…

I'm ready to see what happens, and yet I am in no way prepared to say goodbye to this show for months (possibly a year) until the second season.

Jul 9, 2018 | Full Review…

With two episodes remaining in Discovery's first season, the show's various plot threads are starting to wrap up or converge.

Jan 30, 2018 | Full Review…

While far too much happens in this show, everything which takes place is still fantastic and the series continues to improve week-on-week.

Jan 29, 2018 | Rating: 4/5 | Full Review…

Isaacs is such a brilliant actor and it was such a treat to see him make Lorca unlikable in the truly, well, likable Isaacs fashion.

Mar 14, 2018 | Full Review…

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