Do not enter

This is neither the prologue to Trapped, nor the first chapter, just a snippet of the body of the story. If it captures your interest, please let me know and I'll post it in proper order. Thanks

I slammed into the giant metal door, grasping for a way out. Both of my hands wrapped around the cold knob and I yanked it about.
It was locked.
The curses flowed from my mouth fluidly as I banged on the door. Outwardly, I was panicking. Inwardly, I was wishing I was dead. Or outside of this dungeon, at the very least.
I could hear the echo of their footsteps as they sprinted down the pitch black hallway. Oddly enough, that was the last thing on my mind. I knew that he would be with them. He was on my trail, prepared to take me down and lock me back up again.
“Joey!” I heard his voice. It wasn’t far away now. I banged my shaky fists uselessly against the door. I need light, I begged mentally, the words not quite forming on my lips.
I knew within a minute’s time they would have me surrounded. From there it was back to a life of unjust imprisonment, knowing that the man I once loved, Luke, was the ringmaster in this twisted world I thought belonged to a fairytale.
“Joey, don’t move!” Luke's voice was meters away. I couldn’t see them; I couldn’t see anything period in this dungeon. I hadn’t seen the sunlight in weeks. I craved it more than life itself.
A whimper escaped my mouth, and I heard them all shift, probably to raise their weapons.
I was leaning against the locked door, about to sink to my knees in defeat, when the support behind my back disappeared. I would’ve fallen backwards, but a pair of warm hands caught me and dragged me through the portal opening. The door slammed back shut, leaving the guards and Luke behind.
I was about to scream in terror, but the hands that had saved me covered my mouth. I stared at the metal door, watching as the knob turned. It was only a matter of time before they found a way to open it.
I broke free of my saviour’s hands, and turned to face him.
It was the last face I expected to see. It was Eric, the one person who had made me feel completely unwelcome when I had first arrived. I had been convinced he hated my guts.
“Joey.” His voice washed over my face like a safety net. I could barely see his brown eyes in the dimly lit hallway. Behind us the guards continued to bang on the door, but all I saw was Eric’s face.
“We need to get you out of here.” He whispered.
I wanted to thank him, but words would not come.
So I just fell into his arms and let him lead me away.
The rest was just a very confusing dream.

I'm comforted that this is part of a larger story, otherwise I would've had to dock large ammounts of points for throwing together random names and plot elements. I'm definitely interested, although it doesn't take much to interest me, I was a little hesitant to continue reading after your first few sentences.

slammed into the giant metal door, grasping for a way out.

grasp
[grasp, grahsp]
–verb (used with object)
1. to seize and hold by or as if by clasping with the fingers or arms.
2. to seize upon; hold firmly.

as you can see, "grasping for a way out" doesn't quite work. I would suggest "Searching" or "grasping the door knob"

Both of my hands wrapped around the cold knob and I yanked it about.

Sentence was going great until this phrase here. "Yanked it about" it just doesn't sound right to me. I would suggest "Both of my hands wrapped around the cold knob and yanked quickly" or "turned" or whatever else suits you.

I need light, I begged mentally, the words not quite forming on my lips.

is the "I need light" a thought of our Main Character? Is that the mental plead that is mentioned? If so, it should be italicized "I need light"
If not, it should be "I needed light" since the rest of the story is written past tense (Yanked, Wrapped, Was)

Other than that, it seems like a pretty cool story that I'll have to check out later! Keep writing, please.

This is interesting how you just jumped straight into the action like you did. I couldn't exactly find any mistakes to correct you on, so I'm not going to go and post paragraph after paragraph and show you flaws--that would be annoying. But I do wonder though is this a first chapter or summary? I feel like this needs more, like who, what, when, where, and why and how.

1. Who is our MC, a little background wouldn't be so bad, like 'I Joey (insert last name) can't believe I got into this mess, only months ago I was a normal teenager...' something like that to explain who we're reading about. And is he young or mediumly old? And last names, what are the last names of Luke and Eric, and who are the guards?

2. What's really happening here? All I get is that our MC is locked somewhere and needs to get out because he'll be "imprisoned" otherwise.

3. Where is this all taking place at? I'm picturing a school and a locker oddly. I need a bigger description of where he is and what it feels like.

4. When is this happening? You mentioned sunlight, so I'm assuming it's day time.

5. Why is Luke a bad person after our MC? Why are there guards?

6. How did he get to where he is? How will he be imprisoned? How isn't he sure that Eric was the last person he'd see?

Other than that it was an interesting read, curious as to what it's about though.

Happy writing,
Grandison