Alien Abduction!!1!

You run left, and it's again a long hallway. But you see a door open! You dart inside and close it quickly. (You note in your head that it's a broom closet filled with rakes... Though you don't know why.) You lean your back hard against it and listen. You hold your breath as the aliens stop outside the door. They make noises like they are discussing where you went. You pray that they will leave you alone. Please.. Turn around... Walk away... They grunt and squeak and finally turn back and go away. Their footsteps fade to quiet. You let out your air with a whoosh. Phew. They didn't get you! You wait for a while until you're SURE it's safe. Then you open the door a creak. Yep, the hall is clear. But now you've still got to get outta here. So you go the opposite way the aliens went. (Oh, you're good.) You keep going through the hallway until you end up at a door. You try it and it's unlocked! Perfect! So you go inside, prepared to fight!
........... creeeeeaaaaaakkkkkkk.......
"HIIII-YAAAAAAAAA!" you scream as you burst into the room in full karate position. (At least, what they do in the movies....) But you look around. There aren't any aliens here. There's just a bunch of people in glass containers. Wait, what?? You rush up to them. They seem to be asleep, floating in whatever strange liquid is inside. Over their mouths are things with tubes sticking out of them. Breathing apparatuses, perhaps! You wonder what sick thing the aliens are going to do to these poor people. Maybe they were captured by the lunch ladies, too! You bang on the glass, trying to wake them. But nothing seems to work. They just float there. Then a heroic feels starts taking over your body. This is just like the movies! You versus them. It's time to kick some evil alien butt. But how are you going to release the people?