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.

Ensign Boimler welcomes his girlfriend Barb onto the USS Cerritos, much to Ensign Mariner’s dismay — while Ensigns Ruthford and Tendi have starship envy when the Cerritos rendezvous with the more-advanced USS Vancouver.

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

Mariner tries to impress her best friend from Starfleet Academy who is now a visiting Captain. Boimler is sent to a Starfleet medical ship after a transporter accident puts him “out of phase.”

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.

Approximately three months after the events of the season one finale, the U.S.S. Cerritos is dispatched on a mission where it ends up in a sci-fi event resulting in "strange energy," which Commander Ransom inadvertently absorbs.

Our Lower Deckers have trouble bonding with Ensign Jet Manhaver, who has been assigned Boimler’s bunk and shift duties. Meanwhile, we get a glimpse of Boimler’s life on the U.S.S. Titan, which is more intense than he thought it would be.

Assigned a special task by Dr. T'Ana, Tendi enlists Mariner for help. On the U.S.S. Cerritos, Rutherford is consumed by a bridge crew mystery.

The U.S.S. Cerritos is dispatched to a planet to investigate an unexplained sighting of a dangerous Mugato.

Mariner and Boimler try to track down the location of a legendary Starfleet party while the bridge crew deals with an insecure alien diplomat.

Anomaly consolidation day on the U.S.S. Cerritos leaves the Lower Deckers with mixed emotions. Captain Freeman attempts to negotiate peace on the Pakled home world.

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.

Boimler tries to find a friend from the bridge, while the crew of the USS Cerritos has free time during a long warp trip.

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

Mariner enlists her friends on a rogue mission to exonerate her mother, as Captain Freeman faces a military tribunal for the destruction of Pakled Planet.

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

On a remote science outpost, stone orbs are bringing fantasies to life. Tendi starts her first day as a Senior Science Officer Trainee.

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

Mariner and Boimler work the Starfleet recruitment booth at an alien job fair, Rutherford challenges himself.

The Cerritos crew unexpectedly spends a day on Deep Space Nine.

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

Boimler's holodeck movie sequel tries to live up to the original.

A visiting reporter on the Cerritos puts Captain Freeman on edge.

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