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.

Ensigns Boimler and Mariner embark on a shuttle mission to a Klingon compound while Ensigns Tendi and Rutherford spend time together back on the USS Cerritos.

A new work protocol eliminating "buffer time" has the Lower Decks crew running ragged as they try to keep up with their tightened schedules. Ensign Mariner and Commander Ransom's mutual lack of respect comes to a head during an away mission.

Captain Freeman seeks the ultimate payback after Mariner blatantly disrespects her in front of the crew. A well-meaning Tendi accidentally messes up a Lieutenant's attempt at spiritual ascension and tries to make it right.

The lovable but awkward Ensign Fletcher makes work difficult for Mariner and Boimler. Rutherford introduces Tendi to a holodeck training program he created.

Mariner, Boimler, Tendi and Rutherford are caught off guard when aliens force them to testify about a series of seemingly unrelated events.

Mariner repurposes Boimler's holodeck program to cast herself as the villain in a Lower Decks style movie.

The USS Cerritos encounters a familiar enemy. Tendi helps a struggling recruit find her footing.

Mariner and Boimler are stranded on an uninhabited planet with a sentient computer. On the Cerritos, Lt. Commander Billups must prove his engineering abilities to an old adversary.

A consultant arrives on the U.S.S. Cerritos to run drills that require the lower deckers and bridge crew to swap duties.

In the season two finale, the U.S.S. Cerritos is tasked to aid another class starship on a first contact mission.

On a tropical paradise planet, Mariner questions Commander Ransom on how he structures his away team. Boimler makes a bold career decision.

Mariner, Boimler and Tendi clash with their arch-rivals: Delta Shift. The Cerritos engineers go on mandatory relaxation leave.

A wayward Starfleet ensign struggles to find a path to redemption.

The Cerritos crew must prove their worth in a mission race.

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

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

Boimler leads his first away mission on an alien megastructure.

A trio of Betazoids cause chaos on the Cerritos.

The Lower Deckers go on a classic cave mission.

Mariner faces her past.

A spatial anomaly forces the Cerritos crew to face their own faces. Tendi pirates.

The Lower Deckers hunt nanites on a resort...in space?!

Ransom uses too much disinfectant gel while Mariner gets paranoid about curses.

Mariner teams up with a troubled ensign while the Cerritos hosts peace talks between civilizations.

The Lower Deckers have a pumpkin carving party.

Season finale where lots of wild stuff happens!