Star Trek
Discovery

Episode Guide

Season Air Date Year
Season 1 2017-2018 2256
Season 2 2019 2258

Season 1

"The Vulcan Hello" - 1207.3

While patrolling Federation space, the USS Shenzhou encounters an object of unknown origin, putting First Officer Michael Burnham to her greatest test yet.



"Battle at the Binary Stars" - 1207.3

Face to face with Klingon vessels, the USS Shenzhou prepares for the possibility of war if negotiations fail. Amidst the turmoil, Burnham looks back to her Vulcan upbringing for guidance.



"Context is for Kings" - Unknown

Michael Burnham finds herself aboard the USS Discovery, where she quickly realizes things are not as they seem, including the mysterious Captain Gabriel Lorca.



"The Butcher's Knife Cares Not for the Lamb's Cry" - Unknown

With tensions and stakes high as Starfleet continues in their efforts to end the war with the Klingons, Burnham begins to settle into her new position aboard the USS Discovery.



"Choose Your Pain" - Unknown

While on a mission, Lorca unexpectedly finds himself in the company of prisoner of war Starfleet Lieutenant Ash Tyler and notorious criminal Harry Mudd. Burnham voices her concerns about the repercussions of the spore drive jumps on "Ripper".



"Lethe" - Unknown

The USS Discovery crew is intrigued by new addition Lieutenant Ash Tyler. Sarek seeks Burnham's help, rekindling memories from her past. Admiral Cornwell questions Lorca's tactics.



"Magic to Make the Sanest Man Go Mad" - 2136.8

As the crew attempts to let loose at a party, Harry Mudd triggers a time loop that repeatedly destroys the ship and kills the crew in an effort to learn the secret of the spore drive and sell the Discovery to the Klingons.



"Si Vis Pacem, Para Bellum" - 1308.9

The USS Discovery is tasked with a high priority mission to planet Pahvo and learn the science behind the Klingons' cloaking technology.



"Into the Forest I Go" - Unknown

Disobeying Starfleet's orders, Lorca plans to use the spore drive to discover the secret of the Klingons' cloaking device, destroy the Sarcophagus and lead the Federation to victory.



"Despite Yourself" - Unknown

With the Discovery's spore drive taking them into the mirror universe and Lieutenant Stamets completely incapacitated, the crew discovers the horrors of the Terran Empire and must masquerade as their counterparts to find a way home. Lieutenant Tyler discovers there may be more to his post-traumatic stress disorder than just remembering torture at the hands of the Klingons.



"The Wolf Inside" - Unknown

Still stranded in the mirror universe, Burnham must try to save the lives of a group of rebels whom she is ordered to destroy by the Terran Empire while maintaining her cover as her counterpart. Meanwhile, a growing terror within Lieutenant Tyler consumes him and threatens the chances of the Discovery returning home.



"Vaulting Ambition" - Unknown

Burnham heads to the ISS Charon with a special "gift" for Emperor Georgiou. Back on-board the Discovery, Stamets gains clarity while trapped inside the mycelial network with his Terran counterpart and Saru asks for L'Rell's help to deal with Tyler.



"What's Past Is Prologue" - 1834.2

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 USS Discovery.



"The War Without, The War Within" - Unknown

Michael Burnham and the USS Discovery crew are faced with the war that has been ongoing during their absence. Starfleet tries to think outside of the norm for their next tactics and actions in the fight with the Klingons.



"Will You Take My Hand?" - Unknown

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



Season 2

"Brother" - 1025.19

After answering a distress signal from the USS Enterprise, the USS Discovery welcomes aboard Captain Christopher Pike 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.



"New Eden" - 1027.32

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.



"Point of Light" - 1029.46

A surprise visitor to the USS 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.



"An Obol for Charon" - 1834.2512

A mysterious sphere threatens the USS 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.



"Saints of Imperfection" - Unknown

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.



"The Sound of Thunder" - 1035.86

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.



"Light and Shadows" - Unknown

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.



"If Memory Serves" - 1532.9

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.



"Project Daedalus" - Unknown

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.



"The Red Angel" - Unknown

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 USS Discovery goes to work on its most critical mission to date.



"Perpetual Infinity" - Unknown

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.



"Through the Valley of Shadows" - 1048.66

A fourth signal leads the USS 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.



"Such Sweet Sorrow" - 1050.8

When the USS 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.



"Such Sweet Sorrow, Part 2" - 1201.7

The USS 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.



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