In 2380, the support crew of the U.S.S. Cerritos serves aboard one of Starfleet’s least important ships, where routine duties rarely stay routine for long. Ensigns Mariner, Boimler, Rutherford and Tendi balance work, friendships and social lives while the Cerritos is repeatedly shaken by strange sci-fi anomalies and the everyday chaos of life on the lower decks.