The U.S.S. Solvang NCC-12101 was a California-class Federation starship commanded by Captain Dayton. This was the ship she was given after the destruction of the Rubidoux - but then it was destroyed as well, after it was attacked by a mysterious ship.
Mariner and the Captain's mother/daughter relationship is revealed to the crew, while the Cerritos battles the most dangerous enemy of the season. Meanwhile, Tendi tries to help a struggling new science recruit find her footing...only to be outshined by the newbie.
Boimler has a holodeck program that perfectly replicates the crew, which he uses to practice kissing their butts. Mariner repurposes the program and casts herself as a cinematic villain who attacks the Cerritos in a Lower Decks-style holodeck movie.