Updated for 2026: Originally published as a 2023 preview, this article has been refreshed as a retrospective following the conclusion of Star Trek: Lower Decks.
When Star Trek: Lower Decks Season 4 was first teased, fans expected more of what made the show great:
- Fast-paced comedy
- Deep-cut Star Trek references
- And chaotic missions aboard the USS Cerritos
What we got… was all of that — and something more.
Now, with Lower Decks having concluded its five-season run in 2024, Season 4 stands out as a turning point where the series matured without losing its humor.
Let’s take a look back.
🛸 Back on the Cerritos — But Things Are Changing
Season 4 continues following the “lower deckers” — the junior officers doing the grunt work on one of Starfleet’s least important ships.
But this time, something feels different.
The crew is growing up.
- Mariner is forced to confront leadership
- Boimler is stepping into command potential
- Tendi and Rutherford begin evolving beyond their roles
For a show that started as a parody…
👉 This is where it becomes something more meaningful.
🔥 A Bigger Story — The Rise of Nova Fleet
Season 4 quietly builds toward one of its most ambitious storylines.
Behind the scenes, a mysterious force is:
- Attacking ships
- Stranding command crews
- Creating chaos across the quadrant
The reveal?
👉 A returning deep-cut character: Nick Locarno
He assembles a rogue faction called Nova Fleet, aiming to reshape power in the galaxy.
It’s classic Lower Decks:
- Pulling from obscure Trek lore
- Turning it into something surprisingly high-stakes
- And still managing to be hilarious
💥 The Finale — Big Stakes, Classic Trek Energy
The Season 4 finale delivers one of the show’s most cinematic moments.
- A stolen Genesis Device
- A rogue fleet
- A last-minute rescue
And at the center of it all…
👉 Mariner stepping up when it matters most
She ultimately saves the galaxy by outthinking (and outmaneuvering) Locarno — reinforcing one of the show’s core themes:
👉 Being a “lower decker” doesn’t mean you’re less important.
💔 Character Growth — And Real Consequences
Season 4 isn’t just jokes and references.
It introduces real emotional stakes:
- Mariner’s fear of leadership tied to past trauma
- Boimler proving he’s capable of command
- And one of the biggest moments…
👉 Tendi leaving Starfleet to return to Orion
This wasn’t just a twist — it was a major shift that set up Season 5 and gave the show real emotional weight.
🤯 Fan Service Done Right
One of the things Season 4 absolutely nails?
👉 Legacy connections without overdoing it
From:
- The return of the USS Voyager
- Deep cuts from The Next Generation
- Ferengi callbacks
- And even Genesis Device references
This season proves something important:
👉 Lower Decks understands Star Trek better than almost anything else in the modern era.
🤔 Fan Reception — Comedy Meets Classic Trek
Season 4 was widely praised for striking a better balance:
- Still funny
- Still chaotic
- But with stronger storytelling and stakes
Some fans even argued:
👉 This is where Lower Decks fully earns its place as “real Star Trek.”
And honestly? It’s hard to argue against that.
🧭 Why Season 4 Matters Now
Looking back after the series finale in 2024…
Season 4 feels like the beginning of the endgame.
It:
- Sets up major character arcs for the final season
- Raises the stakes beyond episodic comedy
- Shows the crew stepping into their future roles
Without Season 4…
👉 The emotional payoff of Season 5 wouldn’t have landed nearly as well.
🚀 Final Thoughts — The Season That Proved Lower Decks Was More Than a Joke
When Lower Decks first launched, a lot of fans weren’t sure what to expect.
A comedy? In Star Trek?
But Season 4 proved something important:
👉 It wasn’t just making fun of Star Trek…
👉 It understood Star Trek.
And more importantly…
👉 It honored it.
By the time the credits rolled, one thing was clear:
The “lower deckers” weren’t just background characters anymore.
They were the future of Starfleet.
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