Watch Star Trek: Lower Decks Season 1 123movies online for free. Star Trek: Lower Decks Season 1 Movies123: The animated comedy series STAR TREK: LOWER DECKS follows the support crew on one of Starfleet’s least important ships, the U.S.S. Cerritos, in 2380. Ensigns Mariner, Boimler, Rutherford and Tendi have to keep up with their duties and their social lives, often while the ship is being rocked by a multitude of sci-fi anomalies.