Season 4

Episode Guide

Kobayashi Maru

S4 E1
Nov 17, 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.

Anomaly

S4 E2
Nov 24, 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.

Choose to Live

S4 E3
Dec 01, 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.

All Is Possible

S4 E4
Dec 08, 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.

The Examples

S4 E5
Dec 15, 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.

Stormy Weather

S4 E6
Dec 22, 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.

...But to Connect

S4 E7
Dec 29, 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.

All In

S4 E8
Feb 11, 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.

Rubicon

S4 E9
Feb 18, 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.

The Galactic Barrier

S4 E10
Feb 23, 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.

Rosetta

S4 E11
Mar 02, 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.

Species Ten-C

S4 E12
Mar 09, 2022
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.

Coming Home

S4 E13
Mar 16, 2022
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.