Star Trek: Lower Decks: Mariner and Sito

For four seasons, we’ve wondered what Beckett Mariner’s deal was—her anti-authority persona masking what was deep down her innate desire to be the best she could in Starfleet, and her capability to be a great leader always clashing with her sense of self-sabotage. But in a touching moment that called back to the original The Next Generation episode the show takes its name from beautifully, we learned just why Mariner has always been fearful of the career laid out ahead of her—in a nuanced reckoning with the specters of DS9’s Dominion War in a way few contemporary Trek shows have actually tried to tackle before.