Star Trek: Discovery Episode Guide

Star Trek Disco Episodes


"Star Trek: Discovery" cast


Episode 101: “The Vulcan Hello” (9/24/17)

Series premiere. While patrolling Federation space, the U.S.S. Shenzhou encounters an object of unknown origin, putting First Officer Michael Burnham (Sonequa Martin-Green) to her greatest test yet. Starring Sonequa Martin-Green, Michelle Yeoh and Doug Jones.

Episode 102: “Battle at the Binary Stars” (9/24/17)

Face to face with Klingon vessels, the U.S.S. Shenzhou prepares for the possibility of war if negotiations fail. Amidst the turmoil, Burnham looks back to her Vulcan upbringing for guidance. Starring Sonequa Martin-Green, Michelle Yeoh and Doug Jones.

Episode 103: “Context Is For Kings” (10/1/17)

Burnham finds herself aboard the U.S.S. Discovery where she quickly realizes things are not as they seem, including the mysterious Captain Gabriel Lorca (Jason Isaacs). Starring Sonequa Martin-Green and Jason Isaacs.

Episode 104: “The Butcher’s Knife Cares Not for the Lamb’s Cry” (10/8/17)

With tensions and stakes high as Starfleet continues in their efforts to end the war with Klingons, Burnham begins to settle in to her new position aboard the U.S.S. Discovery. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp and Mary Wiseman.

Episode 105: “Choose Your Pain” (10/15/17)

While on a mission, Lorca unexpectedly finds himself in the company of prisoner of war, Starfleet Lieutenant Ash Tyler (Shazad Latif) and notorious intergalactic criminal, Harry Mudd (Rainn Wilson). Burnham voices her concerns about the repercussions of the spore drive jumps on “Ripper”. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman and Shazad Latif. Guest starring Rainn Wilson.

Episode 106: “Lethe” (10/22/17)

The U.S.S. Discovery crew is intrigued by new addition, Lt. Ash Tyler. Sarek seeks Burnham’s help, rekindling memories from her past. Admiral Cornwell questions Lorca’s tactics. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman and Shazad Latif.

Episode 107: “Magic to Make the Sanest Man Go Mad” (10/29/17)

As the U.S.S. Discovery crew attempts to let loose at a party, an unwelcome visitor comes aboard bringing about a problematic and twisted sequence of events. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman and Shazad Latif.

Episode 108: “Si Vis Pacem, Para Bellum” (11/5/17)

The U.S.S. Discovery is tasked with a high-priority mission to planet Pahvo and learn the science behind the Klingon’s cloaking technology. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman and Shazad Latif.

Episode 109: “Into The Forest I Go” (11/12/17)

Bypassing Starfleet’s orders, Lorca uses the U.S.S. Discovery crew’s ultimate asset, the ship itself, in an effort to end the war with the Klingons once and for all in the Chapter 1 Fall Finale. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman and Shazad Latif.

Episode 110: “Despite Yourself” (1/8/18)

While in unfamiliar territory, the U.S.S. Discovery crew is forced to get creative in their next efforts to survive opposing and unprecedented forces and return home.

Episode 111: “The Wolf Inside” (1/14/18)

As the crew continues their guise, Burnham undergoes a merciless mission in hopes of helping the U.S.S. Discovery return home. Tilly works on restoring Stamets’ neurofunction.

Episode 112: “Vaulting Ambition” (1/21/18)

Burnham heads to the ISS Charon with a special “gift” for the Emperor. With the help of an unexpected source, Stamets gains clarity while trapped inside the mycelial network. Saru asks for L’Rell’s help.

Episode 113: “What’s Past Is Prologue” (1/28/18)

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.

Episode 114: “The War Without, the War Within” (2/4/18)

Back on the U.S.S. Discovery, Burnham and the crew are faced with the harsh reality of the war during their absence. In order to move forward, Starfleet must use unconventional tactics and sources to take their next action against the Klingons.

Episode 115: “Will You Take My Hand?” (2/11/18)

Season one finale. With Georgiou at the helm of the plan to end the Klingon war once and for all, the U.S.S. Discovery crew struggles to fathom and tolerate her hostile tactics. Memories of past hardships are rekindled within Burnham.


Episode 201: “Brother” (1/17/19)

Season premiere. After answering a distress signal from the U.S.S. Enterprise, the U.S.S. Discovery welcomes aboard Captain Christopher Pike (Anson Mount) and begins a new mission to investigate the meaning behind seven mysterious red signals. Michael Burnham grapples with her past growing up on Vulcan with her foster parents and brother Spock.

Episode 202: “New Eden” (1/24/19)

A new signal appears, prompting Stamets’ emotional return to the mycelial network and leading Burnham, Pike and Owosekun to a pre-warp planet, where they face a complex ethical dilemma. Tilly’s over-eagerness lands her in trouble but when the planet – and Discovery’s landing party – are threatened, her curiosity may be the one thing that can save them.

Episode 203: “Point of Light”(1/31/19)

A surprise visitor to the U.S.S. Discovery brings shocking news about Spock and dredges up past regrets for Burnham. Following the asteroid incident, Tilly struggles to keep a grip on her reality. L’Rell’s authority on Qo’noS is threatened.

Episode 204: “An Obol For Charon” (2/7/19)

A mysterious sphere threatens the U.S.S. Discovery even as May, in her original form, implements a plan that puts Tilly’s life in danger. Saru and Burnham’s bond grows when Saru is forced to acknowledge a deeply unsettling Kelpien truth. Pike receives new intel on Spock from a loyal friend.

Episode 205: “Saints of Imperfection” (2/14/19)

Burnham and the crew navigate a dangerous alien landscape in a race against time to save Tilly’s life, but Stamets is not at all prepared for what they find in the process. Section 31 is assigned to help track down Spock, much to Pike’s dismay.

Episode 206: “The Sound of Thunder” (2/21/19)

When a new signal appears over Saru’s home planet, Burnham, Saru and the crew embark on a perilous mission that puts Saru in danger and raises questions about the Red Angel’s intentions. Hugh struggles to come to terms with his new reality.

Episode 207: “Light and Shadows” (2/28/19)

Burnham goes to Vulcan in search of Spock, where she unearths surprising family secrets. In researching what is left of the Red Angel’s signal over Kaminar, Pike and Tyler end up in battle with time itself. Georgiou has a few tricks up her sleeve for Leland and Section 31.

Episode 208: “If Memory Serves” (3/7/19)

Spock and Burnham head to Talos IV, where the process of healing Spock forces the siblings to confront their troubled past. Stamets desperately tries to reconnect with an increasingly disconnected Hugh, while Tyler struggles to shed the crew’s suspicions of him due to his past as Voq.

Episode 209: “Project Daedalus”(3/14/19)

When the Discovery crew infiltrates Section 31’s headquarters, suspicions arise that the crew may have a traitor in their midst. Burnham tries to help Spock but her efforts don’t go as planned.

Episode 210 “The Red Angel” (3/21/19)

Burnham is stunned when she learns her ties to Section 31 run deeper than she ever fathomed. Armed with the identity of the Red Angel, the U.S.S. Discovery goes to work on its most critical mission to date.

Episode 211: “Perpetual Infinity” (3/28/19)

Burnham receives the reunion she’s been longing for, but it doesn’t go quite as she imagined. Georgiou and Tyler sense a disturbing change in Leland.

Episode 212: “Through the Valley of Shadows” (4/4/19)

A fourth signal leads the U.S.S. Discovery to an insular world, where Pike is forced to make a life-changing choice. Burnham and Spock investigate a Section 31 ship gone rogue, leading to a discovery with catastrophic consequences.

Episode 213: “Such Sweet Sorrow” (4/11/19)

When the U.S.S. Discovery’s crucial mission does not go according to plan, Burnham realizes what must ultimately be done. The crew prepares for the battle of a lifetime as Leland’s Control ships get closer.

Episode 214: “Such Sweet Sorrow, Part 2” (4/18/19)

Season two finale. The U.S.S. Discovery battles against Control in a fight not only for their lives but for the future, with a little help from some unexpected friends. Spock and Burnham discern vital new connections between the red signals while Burnham faces one of life’s harshest truths: the right decisions are often the hardest to make.



Episode 301: “That Hope is You, Part 1” (on Thursday, October 15th)

Arriving 930 years in the future, Burnham navigates a galaxy she no longer recognizes while searching for the rest of the U.S.S. Discovery crew. Written by: Michelle Paradise & Jenny Lumet & Alex Kurtzman Directed by: Olatunde Osunsanmi

Episode 302: “Far From Home” (on Thursday, October 22nd)

After the U.S.S. Discovery crash-lands on a strange planet, the crew finds themselves racing against time to repair their ship. Meanwhile, Saru and Tilly embark on a perilous first-contact mission in hopes of finding Burnham. Written by: Michelle Paradise & Jenny Lumet & Alex Kurtzman Directed by: Olatunde Osunsanmi

Episode 303: “People of Earth” (on Thursday, October 29th)

Finally reunited, Burnham and the U.S.S. Discovery crew journey to Earth, eager to learn what happened to the Federation in their absence. Written by: Bo Yeon Kim & Erika Lippoldt Directed by: Jonathan Frakes

Episode 304: “Forget Me Not” (on Thursday, November 5th)

Burnham and Adira visit the Trill homeworld in hopes of unlocking the secrets trapped within Adira’s mind. Back on the U.S.S. Discovery, Saru’s efforts to help the crew reconnect with one another take a surprising turn. Written by: Alan McElroy & Chris Silvestri & Anthony Maranville Directed by: Hanelle M. Culpepper

Episode 305: “Die Trying” (on Thursday, November 12th)

After reuniting with what remains of Starfleet and the Federation, the U.S.S. Discovery and its crew must prove that a 930 year old crew and starship are exactly what this new future needs. Teleplay by: Sean Cochran Story by: James Duff & Sean Cochran Directed by: Maja Vrvilo

Episode 306: “Scavengers” (on Thursday, November 19th)

After receiving a message from Book, Burnham and Georgiou embark on a rogue mission to find him, leaving Saru to pick up the pieces with Admiral Vance. Meanwhile, Stamets forms an unexpected bond with Adira. Written by: Anne Cofell Saunders Directed by: Doug Aarniokoski

Episode 307: “Unification III” (on Thursday, November 26th)

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. Written by: Kirsten Beyer Directed by: Jon Dudkowski

Episode 308: “The Sanctuary” (on December 3rd)

Burnham and the U.S.S. Discovery crew travel to Book’s home planet to help rescue it from Osyraa, the formidable leader of the Emerald Chain. Meanwhile, Stamets and Adira continue their search for valuable information on the origin of the Burn. Written by: Kenneth Lin & Brandon Schultz Directed by: Jonathan Frakes

Episode 309: “Terra Firma, Part 1” (on Thursday, December 10th)

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. Teleplay by: Alan McElroy Story by: Bo Yeon Kim & Erika Lippoldt & Alan McElroy Directed by: Omar Madha


Episode 401: “Kobayashi Maru” (Thursday, November 18th)

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. Written by: Michelle Paradise & Jenny Lumet & Alex Kurtzman Directed by: Olatunde Osunsanmi

Episode 402: “Anomaly” (Thursday, November 25th)

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. Written by: Anne Cofell Saunders & Glenise Mullins Directed by: Olatunde Osunsanmi

Episode 403: “Choose to Live” (Thursday, December 2nd)

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. Written by: Terri Hughes Burton Directed by: Christopher J. Byrne

Episode 404: “All Is Possible” (Thursday, December 9th)

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. Written by: Alan McElroy & Eric J. Robbins Directed by: John Ottman

Episode 405: “The Examples” (Thursday, December 16th)

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. Written by Kyle Jarrow Directed by Lee Rose

Episode 406: “Stormy Weather” (Thursday, December 23rd)

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. Written by: Anne Cofell Saunders & Brandon Schultz Directed by: Jonathan Frakes

Episode 407: “…But to Connect” (Thursday, December 30th)

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. Written by: Terri Hughes Burton & Carlos Cisco Directed by: Lee Rose

Episode 408: “All In” (Thursday, February 10th)

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. Written by: Sean Cochran Directed by: Christopher J. Byrne & Jen McGowan

Episode 409: “Rubicon” (Thursday, February 17th)

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. Written by: Alan McElroy Directed by: Andi Armaganian

Episode 410: “The Galactic Barrier” (Thursday, February 24th)

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. Written by: Anne Cofell Saunders Directed by: Deborah Kampmeier

Episode 411: “Rosetta” (Thursday, March 3rd)

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. Written by: Terri Hughes Burton Directed by: Jeff Byrd

Episode 412: “Species Ten-C” (Thursday, March 10th)

As the DMA approaches Earth and Ni’Var, Captain Burnham and the crew of the U.S.S. Discovery attempt to make First Contact with the powerful species responsible before it’s too late. Written by: Kyle Jarrow Directed by: Olatunde Osunsanmi

Episode 413: “Coming Home” (Thursday, March 17th)

In the season four finale, 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.  Written by: Michelle Paradise Directed by: Olatunde Osunsanmi


Wilson Cruz as Culber and Anthony Rapp as Stamets of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Brendan Meadows/Paramount+ ©2021 ViacomCBS, Inc. All Rights Reserved.

Episode Guide Descriptions from Paramount+ Press Site

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