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

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.

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

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.

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

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.

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.

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.”

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

Tendi races to stop a conflict while Boimler & Mariner race to stop capitalists.

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

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

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.

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

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

Boimler leads his first away mission on an alien megastructure.

Dr. Migleemo cooks up some hot dishes while Mariner prefers hers served cold.

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.

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

A trio of Betazoids cause chaos on the Cerritos.

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

The Lower Deckers have a pumpkin carving party.

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