The 10 Most Underrated Star Trek Episodes Across All Series
Look, we all know about “The Best of Both Worlds” and “The Inner Light.” Those episodes get praised at every convention panel I’ve ever sat through. But after decades of watching Trek and countless rewatches during those long stretches between new series, I’ve come to appreciate the episodes that don’t make everyone’s top ten lists. These are the hidden gems that deserve way more love than they get.
10. “Duet” (DS9, Season 1)
Everyone remembers DS9 for the Dominion War, but this bottle episode from the first season shows what the series could do with just two actors in a room. Harris Yulin’s performance as the Cardassian file clerk who may or may not be a war criminal is absolutely haunting. This episode proved DS9 wasn’t going to be TNG-lite, and it did it without firing a single phaser.
9. “Dreadnought” (Voyager, Season 2)
Voyager gets a lot of flak, some deserved, but this B’Elanna-focused episode is tense as hell. Torres has to outsmart a weapon she herself programmed back in the Maquis days. It’s got everything: moral stakes, technical problem-solving, and Roxann Dawson getting to show her range. Plus, that AI voice was genuinely creepy.
8. “The Visitor” (DS9, Season 4)
Okay, this one gets some recognition, but it’s still not talked about enough. Tony Todd’s performance as adult Jake Sisko will make you ugly-cry every single time. The episode flips the usual Trek time-travel formula on its head by making it about pure love between father and son. I can’t watch the final scene without keeping tissues handy.
7. “Carbon Creek” (Enterprise, Season 2)
Enterprise had a rough go of it, but this episode is pure charm. T’Pol telling a story about Vulcans in 1950s Pennsylvania shouldn’t work, but it absolutely does. It’s funny, sweet, and gives us a completely different side of Vulcan culture. The Velcro origin story alone makes it worth watching.
6. “Waltz” (DS9, Season 6)
Marc Alaimo and Avery Brooks are acting their hearts out for 45 minutes. Dukat’s complete mental breakdown while stranded with Sisko is uncomfortable, brilliant television. This episode doesn’t let you sympathize with Dukat anymore, and that’s precisely what it needed to do before the final season. Dark Trek at its finest.
5. “Lower Decks” (TNG, Season 7)
Not to be confused with the animated series it inspired, this episode focuses on junior officers competing for a promotion. We see the Enterprise from the perspective of people who aren’t bridge crew, and it’s fascinating. The ending hits like a gut punch because we actually got to know Ensign Sito. This is the kind of risk TNG should have taken more often.
4. “Rocks and Shoals” (DS9, Season 6)
Stranded Jem’Hadar soldiers forced to confront their addiction to ketracel-white while facing off against our crew. The moral complexity here is peak DS9. The Vorta Keevan is desperate, the Jem’Hadar are sympathetic despite being the enemy, and there’s no clean resolution. It’s war without the glory, and it’s brilliant.
3. “The Thaw” (Voyager, Season 2)
Michael McKean as a nightmare-clown AI holding hostages in virtual reality is either going to work for you or it won’t. For me, it absolutely does. This episode is weird, unsettling, and features one of Janeway’s best moments when she outsmarts Fear itself. Voyager can be strange sometimes, and that is strange in the best way.
2. “It’s Only a Paper Moon” (DS9, Season 7)
Nog is dealing with PTSD after losing his leg, finding refuge in Vic’s holosuite lounge. James Darren’s Vic Fontaine was always a controversial addition, but this episode justifies his entire existence. Watching Nog slowly heal through the power of friendship and a safe space is beautiful, nuanced storytelling about trauma that Trek rarely attempted.
1. “Shuttlepod One” (Enterprise, Season 1)
Trip and Malcolm are trapped in a shuttlepod, convinced Enterprise has been destroyed, with only days of air left. No aliens, no technobabble solution, just two guys confronting mortality and their friendship. Connor Trinneer and Dominic Keating have incredible chemistry, and this bottle episode proves Enterprise could tell intimate, character-driven stories when it wanted to.
These episodes might not have the flash of the big two-parters or the iconic status of the series finales. Still, they represent what makes Star Trek special: compelling characters facing impossible situations, moral complexity without easy answers, and performances that stick with you long after the credits roll.
Next time you’re doing a rewatch, give these episodes another shot. I promise you’ll find something you missed the first time around.
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'Infinite Watching' image, courtesy Bill Fanning, ©2025