Ensign Tendi has her first day of work on Starfleet's USS Cerritos, where she meets fellow support crew members. Boimler is tasked with a secret special assignment. Rutherford attempts to keep his dating life intact while a disaster strikes the ship.
Boimler is plagued with self-doubt while Mariner proves herself to be the more naturally talented of the two. Rutherford quits his job in engineering and explores other departments on the USS Cerritos.
The lower decks crew struggle to keep up with tightened schedules. Ensign Mariner and Commander Ransom's mutual lack of respect comes to a head during an away mission.
Captain Freeman seeks payback after Mariner disrespects her in front of the crew. Tendi accidentally messes up a Lieutenant's attempt at spiritual ascension and tries to make good.
Mariner becomes suspicious of Boimler's new girlfriend. Tendi and Rutherford grow jealous of a bigger starship's gear.
Ensign Fletcher makes work difficult for Mariner and Boimler. Rutherford shares a holodeck training program he created with Tendi.
Tawny Newsome
Ensign Beckett Mariner
Jack Quaid
Ensign Brad Boimler
Noël Wells
Ensign Tendi
Eugene Cordero
Ensign Rutherford
Dawnn Lewis
Captain Carol Freeman