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.
Episode 1
Twovix
Sep 7, 2023
The Cerritos ensigns must assist a caretaker on the voyage of a historically significant starship.
Episode 2
I Have No Bones Yet I Must Flee
Sep 7, 2023
Mariner tries to get demoted, Rutherford tries to get promoted, and Boimler makes a big move.
Episode 3
In the Cradle of Vexilon
Sep 14, 2023
Boimler leads his first away mission on an alien megastructure.
Episode 4
Something Borrowed, Something Green
Sep 21, 2023
Tendi is summoned back to Orion for a wedding.
Episode 5
Empathalogical Fallacies
Sep 28, 2023
A trio of Betazoids cause chaos on the Cerritos.
Episode 6
Parth Ferengi's Heart Place
Oct 5, 2023
The Cerritos visits the Ferengi homeworld.
Episode 7
A Few Badgeys More
Oct 12, 2023
Three computerized villains return to cause problems for the Cerritos crew.
Episode 8
Caves
Oct 19, 2023
The Lower Deckers go on a classic cave mission.
Episode 9
The Inner Fight (1)
Oct 26, 2023
Captain Freeman assigns the Lower Deckers an overly safe mission to try and keep a self-destructive Mariner out of danger.
Episode 10
Old Friends, New Planets (2)
Nov 2, 2023
Mariner faces her past.