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The Worst Episodes of Star Trek: Discovery

Every episode of Star Trek: Discovery ranked from worst to best. Explore the Worst Episodes of Star Trek: Discovery!

Follow the voyages of Starfleet on their missions to discover new worlds and new life forms, and one Starfleet officer who must learn that to...
Genres:Sci-Fi & FantasyAction & AdventureDrama

Worst Episodes Summary

"All Is Possible" is the worst rated episode of "Star Trek: Discovery". It scored 5.2/10 based on 3278 votes. Directed by John Ottman and written by Alan B. McElroy, Eric J. Robbins, it aired on 12/9/2021. This episode scored 0.3 points lower than the second lowest rated, "Anomaly".

  • All Is Possible
    5.2/103,278 votes
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    #1 - All Is Possible

    Season 4 Episode 4 - Aired 12/9/2021

    Tilly and Adira lead a team of Starfleet Academy cadets on a training mission that takes a dangerous turn. Meanwhile, Burnham is pulled into tense negotiations on Ni’Var.

    Director: John Ottman

    Writer: Alan B. McElroy, Eric J. Robbins

  • Anomaly
    5.5/103,346 votes
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    #2 - Anomaly

    Season 4 Episode 2 - Aired 11/25/2021

    Saru returns to help the U.S.S. Discovery uncover the mystery of an unusually destructive new force. As Burnham leads the crew, she must also find a way to help Book cope with an unimaginable loss.

    Director: Olatunde Osunsanmi

    Writer: Anne Cofell Saunders, Glenise Mullins

  • Stormy Weather
    5.5/102,841 votes
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    #3 - Stormy Weather

    Season 4 Episode 6 - Aired 12/23/2021

    Seeking answers, the U.S.S. Discovery ventures into a subspace rift created by the Dark Matter Anomaly. Meanwhile, Book faces a strange visitor from his past.

    Director: Jonathan Frakes

    Writer: Brandon Schultz, Anne Cofell Saunders

  • Rosetta
    5.5/102,183 votes
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    #4 - Rosetta

    Season 4 Episode 11 - Aired 3/3/2022

    While Captain Burnham leads an away mission to a planet that was once home to the aliens responsible for the DMA, Book and Tarka secretly infiltrate the U.S.S. Discovery.

    Director: Jeffrey W. Byrd

    Writer: Terri Hughes

  • Choose to Live
    5.6/103,063 votes
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    #5 - Choose to Live

    Season 4 Episode 3 - Aired 12/2/2021

    Burnham and Tilly hunt the killer of a Starfleet officer as Stamets and the science team race against the clock to prevent the anomaly from killing anyone else.

    Director: Christopher J. Byrne

    Writer: Terri Hughes

  • All In
    5.7/102,285 votes
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    #6 - All In

    Season 4 Episode 8 - Aired 2/10/2022

    Following a hunch, Captain Burnham tracks Book to an old haunt from their courier days and gets drawn into a high-stakes competition for a powerful weapon.

    Director: Christopher J. Byrne

    Writer: Sean Cochran

  • Whistlespeak
    5.7/101,370 votes
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    #7 - Whistlespeak

    Season 5 Episode 6 - Aired 5/2/2024

    While undercover in a pre-warp society, Captain Burnham is forced to consider breaking the Prime Directive when a local tradition threatens Tilly's life. Meanwhile, Culber tries to connect with Stamets, and Adira steps up when Rayner assigns them a position on the bridge.

    Director: Christopher J. Byrne

    Writer: Brandon Schultz, Kenneth Lin

  • The Sanctuary
    5.8/103,794 votes
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    #8 - The Sanctuary

    Season 3 Episode 8 - Aired 12/3/2020

    Osyraa attacks Book's home planet and the Discovery travels there to help. Stamets and Adira investigate The Burn.

    Director: Jonathan Frakes

    Writer: Brandon Schultz, Kenneth Lin

  • Rubicon
    5.8/102,120 votes
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    #9 - Rubicon

    Season 4 Episode 9 - Aired 2/17/2022

    Captain Burnham and the U.S.S. Discovery race to stop Book and Ruon Tarka from launching a rogue plan that could inadvertently endanger the galaxy.

    Director: Andi Armaganian

    Writer: Alan B. McElroy

  • Jinaal
    5.8/101,533 votes
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    #10 - Jinaal

    Season 5 Episode 3 - Aired 4/11/2024

    On Trill, Captain Burnham, Book, and Culber must pass a dangerous test to prove themselves worthy of the next clue. Adira reconnects with Gray and Saru’s first day as ambassador is complicated by his engagement to T'Rina.

    Director: Andi Armaganian

    Writer: Kyle Jarrow, Lauren Wilkinson

  • Kobayashi Maru
    5.9/103,980 votes
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    #11 - Kobayashi Maru

    Season 4 Episode 1 - Aired 11/18/2021

    After months spent reconnecting the Federation with distant worlds, Captain Michael Burnham and the crew of the U.S.S. Discovery are sent to assist a damaged space station – a seemingly routine mission that reveals the existence of a terrifying new threat.

    Director: Olatunde Osunsanmi

    Writer: Alex Kurtzman, Michelle Paradise, Jenny Lumet

  • ...But to Connect
    5.9/102,566 votes
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    #12 - ...But to Connect

    Season 4 Episode 7 - Aired 12/30/2021

    Tensions rise as representatives from across the galaxy gather to confront the threat of the Dark Matter Anomaly. Zora's new sentience raises difficult questions.

    Director: Lee Rose

    Writer: Terri Hughes, Carlos Cisco

  • The Galactic Barrier
    5.9/102,180 votes
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    #13 - The Galactic Barrier

    Season 4 Episode 10 - Aired 2/24/2022

    Captain Burnham and her crew must go where few have gone before: beyond the Galactic Barrier. Meanwhile, Book learns the truth of what drives Ruon Tarka.

    Director: Deborah Kampmeier

    Writer: Anne Cofell Saunders

  • Coming Home
    5.9/102,925 votes
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    #14 - Coming Home

    Season 4 Episode 13 - Aired 3/17/2022

    The DMA approaches Earth and Ni’Var. With evacuations underway, Burnham and the team aboard the U.S.S. Discovery must find a way to communicate and connect with a species far different from their own before time runs out.

    Director: Olatunde Osunsanmi

    Writer: Michelle Paradise

  • The Examples
    6.0/102,718 votes
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    #15 - The Examples

    Season 4 Episode 5 - Aired 12/16/2021

    Burnham and Book race to evacuate a group of stranded colonists in the anomaly’s path as one of the Federation’s brightest scientists comes aboard the U.S.S. Discovery to do high-stakes research with Saru and Stamets.

    Director: Lee Rose

    Writer: Kyle Jarrow

  • Su'Kal
    6.2/103,430 votes
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    #16 - Su'Kal

    Season 3 Episode 11 - Aired 12/24/2020

    Discovery ventures to the Verubin Nebula, where Burnham, Saru, and Culber make a shocking realization about the origin of the Burn. The rest of the crew faces an unexpected threat.

    Director: Norma Bailey

    Writer: Anne Cofell Saunders

  • Life, Itself
    6.2/101,757 votes
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    #17 - Life, Itself

    Season 5 Episode 10 - Aired 5/30/2024

    Trapped inside a mysterious alien portal that defies familiar rules of time, space, and gravity, Captain Burnham must fight Moll – and the environment itself – in order to locate the Progenitors' technology and secure it for the Federation. Meanwhile, Book puts himself in harm's way to help Burnham survive and Rayner leads the U.S.S. Discovery in an epic winner-takes-all battle against Breen forces.

    Director: Olatunde Osunsanmi

    Writer: Michelle Paradise, Kyle Jarrow

  • Red Directive
    6.3/102,121 votes
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    #18 - Red Directive

    Season 5 Episode 1 - Aired 4/4/2024

    Captain Burnham and the U.S.S. Discovery are sent to retrieve a mysterious 800-year-old Romulan vessel; until the artifact hidden inside is stolen, leading to an epic chase. Meanwhile, Saru is offered the position of a lifetime, and Tilly's efforts to help pull her into a tangled web of secrecy.

    Director: Olatunde Osunsanmi

    Writer: Michelle Paradise

  • Forget Me Not
    6.4/104,609 votes
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    #19 - Forget Me Not

    Season 3 Episode 4 - Aired 11/5/2020

    Burnham and Adira visit the Trill homeworld while Saru's efforts on the Discovery to help the crew reconnect yield surprises.

    Director: Hanelle M. Culpepper

    Writer: Chris Silvestri, Anthony Maranville, Alan B. McElroy

  • Terra Firma (1)
    6.4/103,562 votes
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    #20 - Terra Firma (1)

    Season 3 Episode 9 - Aired 12/10/2020

    The U.S.S. Discovery crew journey to a mysterious planet in hopes of finding a cure for Georgiou's deteriorating condition. Stamets and Adira make a stunning breakthrough with the newly acquired Burn data.

    Director: Omar Madha

    Writer: N/A

  • Terra Firma (2)
    6.4/103,516 votes
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    #21 - Terra Firma (2)

    Season 3 Episode 10 - Aired 12/17/2020

    Georgiou uncovers the true depths of the plot against her, leading her to a revelation about how deeply her time on the U.S.S. Discovery truly changed her.

    Director: Chloe Domont

    Writer: N/A

  • Mirrors
    6.4/101,332 votes
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    #22 - Mirrors

    Season 5 Episode 5 - Aired 4/25/2024

    Captain Burnham and Book journey into extradimensional space in search of the next clue to the location of the Progenitors' power. Meanwhile, Rayner navigates his first mission in command of the U.S.S. Discovery, and Culber opens up to Tilly.

    Director: Jen McGowan

    Writer: Carlos Cisco, Johanna Lee

  • Erigah
    6.4/101,164 votes
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    #23 - Erigah

    Season 5 Episode 7 - Aired 5/9/2024

    With Moll and L'ak finally in custody, the Federation is pulled into a diplomatic and ethical firestorm when the Breen arrive and demand they be handed over. Meanwhile, a frustrated Book looks for ways to help as Tilly, Adira, and Reno work to decipher the latest clue.

    Director: Jon Dudkowski

    Writer: M. Raven Metzner

  • Labyrinths
    6.4/101,202 votes
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    #24 - Labyrinths

    Season 5 Episode 8 - Aired 5/16/2024

    When Captain Burnham is trapped within a “mindscape” designed to test her worthiness to retrieve the Progenitor's powerful technology, Book, Rayner, and the crew of the U.S.S. Discovery must hold off the Breen long enough for her to escape.

    Director: Emmanuel Osei-Kuffour, Jr.

    Writer: Eric J. Robbins, Lauren Wilkinson

  • Unification III
    6.5/103,967 votes
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    #25 - Unification III

    Season 3 Episode 7 - Aired 11/26/2020

    While grappling with the fallout of her recent actions, and what her future might hold, Burnham agrees to represent the Federation in an intense debate about the release of politically sensitive - but highly valuable - Burn data.

    Director: Jon Dudkowski

    Writer: Kirsten Beyer