1 - 20 of 137 Works in Leonardo Remains in the Prison Dimension (TMNT)
Navigation
Listing Works
-
live to let you shine by GibbousLunation, remrose, Soldraws, taizi
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
01 Nov 2025
Tags
Summary
Gio had fallen into their lives at a point where the safety net had more holes than threads to hold. He was young, had the signs of a life hard won and fought through, but he tried. Absorbed absolutely anything his family would give him, even when it was nothing at all. Dark eyes, taking in any and all of the light he could just to find himself.
It was a tragedy in three parts just to watch him thrive off wavering candlelights and embers, wandering around the halls like a detective finding hints of some past crime.
Mikey squares himself. Finds that thread left in him that’s farther and farther away every day. Gio deserves the light, he can make some for him. He can.
Or: a series of standalone oneshots about Giorgio Hamato finding a home, getting adopted, and being loved back--not necessarily in that order. Set in both timelines.
Series
- Part 2 of the archer
-
Six years by Andi_Star_Bee
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
18 Oct 2025
Tags
Summary
Six years after Leo got stuck in the prison dimension, he finally returns home. Mikey is alone, Raph is in college, and Donnie moved into his own home. Leo leads his family on a hunt to surprise them.
-
A Shadow of What You Once Were by IDIOTICBEAN101
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
15 Oct 2025
Tags
Summary
Mikey was never able to get Leo out of the Prison Dimension.
The grief was... immense, to say the least.
Even five years later, things aren't right without their final brother.
But, they've managed to move on.
That's what Leo would've wanted.And for a while, things are okay.
That is, until Mikey sees the ghost of his dead brother staring back at him.
Tldr;
Five years since the movie and Leo died, but he's a ghost now! Yay! -
The Shell Of Who I Was by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
12 Oct 2025
Tags
Summary
After sacrificing himself to save his family, Leo is trapped in the Prison Dimension for an entire year. When a mystic rift tears open and the turtles recover him, he’s no longer the brother they once knew—he’s feral, wild, and unrecognizing. Haunted by whatever horrors he endured, Leo has forgotten what it means to be himself. Now, his family must face the impossible task of piecing their leader back together, while uncovering the devastating truth of what happened in that void.
Series
- Part 1 of Rise Leo Feral AU
-
Dimmed and bugging out String-lights (Hiatus) by lArtiel
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
03 Oct 2025
Tags
Summary
Right as Leo was about to grab raphs hand, somehow escaping the prison dimension and his end at Krangg-Primes anger! something, of course had to go wrong.
Now stuck here with stranger who’s uncomfortably similar to his brother, who’s mind seems to have some mystic interference- or something like that…? He needs to get this stranger out of the crossfire of his problems without letting the Krangg back out.
Aka, rise!Leo and 2012!donnie stuck in prison dimension together!
-
Escaping the Abyss by Vale_mlcek
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
30 Sep 2025
Tags
Summary
Leo spent seven years trapped in the Prison Dimension. He didn’t age. He didn’t die. He only survived—barely—in a dimension designed to contain everything, even time itself.
His three brothers, now adults, finally manage to rescue him… only to find him with the same fourteen-year-old body he had at the moment of his sacrifice.
Leonardo must learn to fit back into a family that grew without him, all while struggling with the trauma of having spent seven years locked away with a psychotic alien who never let him forget his guilt.
-
Arc One: The Battle by NinjaNekosLibrary
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
04 Sep 2025
Tags
Summary
“It’s a nickname. Short for Donatello.”
“Heh.” He quirks a smile. “Kinda a coinkydink ‘cause-”
“Hamato Donatello.” Leo’s head shoots up and the turtle looks back. “My brothers are Leonardo, Raphael, and Michelangelo. They have nicknames too. Mikey, Raph…” He tilts his head, urging, “Leo.”
Leo stares, looking for any sign of deception. The turtle keeps talking, almost as if he’s trying to get the words out before his brain can catch up. “We’re a team. We fight crime and save people. I have a father. We call him Splinter. He’s a rat. Used to be a human. Adopted me and my brothers, taught us ninjitsu.”
Leo’s paralyzed. He waits for the snickers, or for the punchline.
The turtle does not shirk away, eyes bright with the maniac look that Donnie gets when he proves a theory correct and is dying for a single person to acknowledge that he’s the smartest being on planet earth.
“So. Leo.” It’s conversational, calm, eager. “What’s your family like?”
(Or, A crossover where 2012Donnie is sent by Za-Naron into the Prison Dimension and joins RiseLeo during his stay. ✨ And they bond. ✨)
Series
- Part 1 of Mismatched Twins
-
A weird kind of friendship by crisiscris
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
05 Jul 2025
Tags
Summary
Strangely enough, his first instinct wasn’t run away, or teleport to the farest anchor he had, he just stood there, looking at the eyes of that monster, the both of them did nothing but stare at each other for long seconds before he took a step, one step to the direction of his worst enemy, the one who despise him for trapping it there together, the one who took control of his loved ones, the one who almost ended humanity, the one who doomed them all.
OR
Leo remains in the prison dimension and makes some weird "friendship" with the krang, How is he getting out of the prison dimension??? i don't know
-
Symbiosis by sleepy_tablesalt
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
01 Jul 2025
Tags
Summary
Leonardo is left inside the Prison Dimension, trapped inside this barren wasteland. Left alone with his sworn enemy, Kraang...
Or so he thought? -
Anywhere But Here by TiredAndNerdy
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
29 Jun 2025
Tags
Summary
When Leo left the Prison Dimension, he left his ability to portal with it. He’d tried nonstop for two months, but the whole ordeal gets a little more complicated when one arm is broken, and its matching katana is floating around with Krang Prime somewhere. And then one day, without prompting, he does it. Somehow, this is not a good thing.
Typically, when you escape a dimension and blowtorch your only way back in, you assume that’s the last of you’ll see of it. So just imagine how it feels visiting it five times in one night.
———
Leo starts portaling uncontrollably. This causes issues.
-
An Eternity of Suffering by Magisav
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
21 Jun 2025
Tags
Summary
In the void where time forgets itself, Leo burns—again and again—his screams swallowed by the dark. Kraang Prime carves torment into his bones, yet through the agony, he clutches fading echoes of laughter, the warmth of home. If their world is safe, let his soul be the price, shattered and screaming, forever in the dark.
Series
- Part 2 of Echoes of the Lost
-
and the blue sea below by MagicalSpaceDragon
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
19 Jun 2025
Tags
Summary
Leo comes to terms with himself.
Series
- Part 4 of theseus, and
-
The Beginning of the End by Magisav
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
17 Jun 2025
Tags
Summary
A battle against all odds.
A battle with only one outcome.
And the aftermath of that battle.
Series
- Part 1 of Echoes of the Lost
-
THIS IS YOUR SHIP AND YOU ARE THE CAPTAIN by wait_put_the_gun_dowm
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 Jun 2025
Tags
Summary
“Leo reached up to rub his eye, forgetting. He forgot that the arm he tried to reach up was broken, mangled, and twisted in an odd shape. He nearly screamed, but he couldn't afford to make any noise, plus he was used to it after three(?) months in the PD and he knew it would heal again and again, stronger each time for some reason (and this went against all of his medical knowledge). He was hiding, you see, from Prince Bubblegum.”
Or: Leo's brothers aren't able to save him. Thankfully (and unfortunately), you can't die in the Prison Dimension.
-
when i'm alone by war_spacehog
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
15 Jun 2025
Tags
Summary
The prison dimension was cold and dark. Debris everywhere. There were always things to be wary of, from broken ships to crumbling buildings. The Kraang could be hiding in anything. Despite the contrast in the bleak gray, the bright red lights of the creature's armor were hard to spot. Leo never had a chance to relax.
He wasn't sure what to really expect; he knew this would happen. He honestly wanted it to. Better him than his brothers, right?
He tried to suppress his memories of them. It made it that much harder to live- well, survive- in this desolate hell. He wondered if they moved on frequently. Had they made him a grave? Had they cleaned out his room?
His thoughts always circled back to them, no matter how hard he tried. It hurt to think about them.Series
- Part 1 of leo and kraang angst babeyy
-
Text Me Back by Star_Shipper
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (Bay Movies), Samurai Rabbit: The Usagi Chronicles (Cartoon)
29 May 2025
Tags
Summary
An almost apocalypse is going to leave anyone with some lasting scars - whether that be the physical kind or the mental sort - and there is definitely something... *wrong* with Leo after his brothers had pulled him out of the Prison Dimension. And it wasn't just because of the medically induced coma he had been forced into by Draxum shortly after.
Why did he keep referring to the invasion as if it had happened years ago?
Why did he get touchy around the subject of prosthetic limbs?
Why did he always get this certain look in his eye when told that he was too young for something or still a child?
And why - Raph can't help but shudder at the very sickening thought - did he always giggle like a schoolgirl whenever rabbits and swords were mentioned together around him? -
At the Cost of Sacrificing by Doki_d0k1
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
15 May 2025
Tags
Summary
—Took you guys long enough —Leo joked, while smiling. His heart felt relief at seeing his three brothers in front of him.
Raph's grip grew stronger, and the speed increased considerably. They were getting closer to the portal, closer to being saved. They were so close.
No one noticed that, at that precise moment, what seemed like the end of their battle was only the beginning of their suffering.
His heart thumped loudly in his chest. Raphael felt like he was running out of air.
-
A Costa de Sacrificarse by Doki_d0k1
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
14 May 2025
Tags
Summary
—Se tomaron su tiempo —bromeó Leo, mientras sonreía, su corazón sintió un alivio al ver a sus tres hermanos frente a él. Estaban ahí y estarían juntos de nuevo.
El agarre de Raph se hizo más fuerte y la velocidad aumentó considerablemente. Estaban cada vez más cerca del portal, cada vez más cerca de salvarse. Estuvo cerca.
Nadie se dio cuenta de que, en ese preciso momento, lo que parecía el fin de su batalla era solo el comienzo de su sufrimiento.
Su corazón dio un fuerte golpe en su pecho. Raphael sintió cómo se quedaba sin aire.
-
One Last Chance by Star_Shipper
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
09 May 2025
Tags
Summary
What happens when you find an opportunity to get back the one thing you've come to find you can't really live without?
Sure, you may survive, but live? Really live?
You're probably gonna do whatever you could to chase that one last chance to the fullest.
Series
- Part 2 of Rottmnt au
-
Leo's Guide To Surviving The Prison Dimension by NerdyBoiYeet
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
17 Apr 2025
Tags
Summary
Life in the prison dimension is tough.
Luckily there's a local slider here to catalog his survival guide! From friendships to food to new enemies, Neon Leon's guide has everything you need!