The fourth season of Star Trek: Lower Decks finds the U.S.S. Cerritos ensigns being challenged in new ways and given new opportunities, while also learning they’ll be “lower decks” for a long time to come.

Release Date

Premiered

Star Trek: Lower Decks Season 4 released on September 7, 2023.

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Episodes

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S04E01 Aired September 07, 2023

Twovix

The Cerritos ensigns must assist a caretaker on the voyage of a historically significant starship.

S04E02 Aired September 07, 2023

I Have No Bones Yet I Must Flee

Mariner tries to get demoted, Rutherford tries to get promoted, and Boimler makes a big move.

S04E03 Aired September 14, 2023

In the Cradle of Vexilon

Boimler leads his first away mission on an alien megastructure.

S04E04 Aired September 21, 2023

Something Borrowed, Something Green

Tendi is summoned back to Orion for a wedding.

S04E05 Aired September 28, 2023

Empathalogical Fallacies

A trio of Betazoids cause chaos on the Cerritos.

S04E06 Aired October 05, 2023

Parth Ferengi's Heart Place

The Cerritos visits the Ferengi homeworld.

S04E07 Aired October 12, 2023

A Few Badgeys More

Three computerized villains return to cause problems for the Cerritos crew.

S04E08 Aired October 19, 2023

Caves

The Lower Deckers go on a classic cave mission.

S04E09 Aired October 26, 2023

The Inner Fight (1)

Captain Freeman assigns the Lower Deckers an overly safe mission to try and keep a self-destructive Mariner out of danger.

S04E10 Aired November 02, 2023

Old Friends, New Planets (2)

Mariner faces her past.