Episode 401: “Twovix” – Available to stream Thursday, September 7

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

Written by: Mike McMahan

Directed by: Barry J. Kelly

Directed by: Jason Zurek

Episode 402: “I Have No Bones Yet I Must Flee” – Available to stream Thursday, September 7

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

Written by: Aaron Burdette

Directed by: Megan Lloyd

Episode 403: “In the Cradle of Vexilon” – Available to stream Thursday, September 14

Boimler leads his first away mission on an alien megastructure.

Written by: Ben Waller

Directed by: Brandon Williams

Episode 404: “Something Borrowed, Something Green” – Available to stream Thursday, September 21

Tendi is summoned back to Orion for a wedding.

Written by: Grace Parra Janney

Directed by: Bob Suarez

Episode 405: “Empathalogical Fallacies” – Available to stream Thursday, September 28

A trio of Betazoids cause chaos on the Cerritos.

Written by: Jamie Loftus

Directed by: Megan Lloyd

Episode 406: “Parth Ferengi's Heart Place” – Available to stream Thursday, October 5

The Cerritos visits the Ferengi homeworld.

Written by: Cullen Crawford

Directed by: Brandon Williams

Episode 407: “A Few Badgeys More” – Available to stream Thursday, October 12

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

Written by: Edgar Momplaisir

Directed by: Bob Suarez

Episode 408: “Caves” – Available to stream Thursday, October 19

The Lower Deckers go on a classic cave mission.

Written by: Ben Rodgers

Directed by: Megan Lloyd

Episode 409: “The Inner Fight” – Available to stream Thursday, October 26

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

Written by: Mike McMahan

Directed by: Brandon Williams

Episode 410: “Old Friends, New Planets” – Available to stream Thursday, November 2

Mariner faces her past in the season four finale.

Written by: May Darmon

Directed by: Bob Suarez