A man in a quarantine silver suit uses robotic arms to organize vials of green and blue substances from a refrigeration chamber to a case. When the case is full, it is sealed and he retrieves it from the chamber.
A gloved hand releases a vial of the blue substance. It breaks against a desk and leaks onto the floor. The door to the room is sealed and locked. The substance becomes airborne and is released into the air vents.
A young man, who seems to be enjoying his day, walks down a hallway, sipping coffee. His name tag reads Sampson. A woman's voice on the PA system is heard lightly in the background, " All Umbrella staff must wear their identity tags at all times. All radiation badges will be collected at 5pm." He turns a corner and another man, walking strangely fast with a large black bag, wearing latex gloves, bumps into Sampson causing him to spill his coffee all over himself. He grunts and yells, "Thank you!" after the man, who keeps walking. Sampson stands in front of the elevator next to a woman, Gate, "Some people." He gives her a nervous nod. The elevator doors open and a large group enters.
10 doberman pinchers rest in wire cages. One becomes alert and sniffs the air coming from the vent. It begins to bark wildly, which causes the others to bark as well.
Two men and a woman enter the lab that the man in the quarantine suit was in earlier. One of the male scientists is bald, Johnson, the other has short, dark hair with stubble on his cheek, Davis. The female scientist has long, flowing blonde hair, Riva. She is politely turning Davis down for a date while they start their work.
Many men and women sit at desks, talking and working. Then, an alarm goes off. They leave their desks and get up to leave, but the doors seal themselves. No one can get out.
In the elevator, people sip their coffee and read the paper. It comes to an abrupt stop, causing some residents to stumble a bit. They hear the faint sound of an alarm. "What's that?" asks Simpson. "Fire drill," answers Gate.
The three scientists try to leave the lab, but the door closes and locks itself. The sprinklers come on and quickly soak the room. "Shit!" "Hey, what the hell's going on?" "Get the experiments covered!" yells Riva. They attempt to save their research from their watery demise. "The experiments! Move them!" she yells.
All of the dogs circle in their cages, barking loudly. Their guard attempts to calm them, "Hey! HEY!" They continue to bark.
In the elevator, Sampson begins to slightly panic. He comes forward and starts to press random buttons on the pad, "Shouldn't the uh... doors open?" "They're supposed to take us to the nearest floor," says Gate. The lights shut off and blue emergency lights replace them. She picks up the phone, "Hello?... the line's dead..."
The desk workers crowd the doors. A woman steps forward, Lisa, "What's the problem?" "The doors won't open," answers a man. "What about the ones at the back?" she asks. "Locked as well," answers another man.
In the lab, the water is still falling. About a foot and a half of water has risen from the ground. Riva is trying to get the security system's attention, "There's no fire here! No fire! What's wrong with you?" The men are trying to open the door. She goes to help them. "Security code doesn't work. The doors won't open and this water isn't going anywhere," says Davis to Riva. "What?" "It's a sealed room!" "We have to open the doors!" "Oh fuck the doors!" yells Johnson as he grabs the fire axe off the wall. He runs at the glass windows and swings the axe with all his strength.
Sampson is freaking out. He's pressing random buttons and trying open the doors by hand, "We have to get out of here!" "Take it easy." "No, you take it easy!" "Quiet!" yells Gate. They all stop and listen. Screeching metal and the faint sound of screams are heard in the distance. It sounds like it's getting closer. It's the other elevator falling down the shaft. It crashes at the bottom. Gate realizes what happened, "Oh my god..." The breaks are suddenly released on their car and it begins to fall as the people inside begin to scream. The display reads 'Floor 3' and it stops suddenly. The people fall to the ground from the force.
The desks workers are still trying to get the doors open. The air filters in the ceiling open and begin to take all forms of gas out of the room. The people scream and scramble. They fall to the ground as they gasp for air and their lives are slowly drained. Lisa tries to get the attention of the security camera, "Stop it! Stop!" They all suffocate.
Two men in the elevator get their fingers in the doors and pull them open slightly. Gate looks through before Sampson pushes forward, "Let me see." He looks through to see everyone on that floor dead, "We have to get out of here. We have to get out of this building!" They try to open the doors more, "Thats as far as they'll go." Gate takes her jacket off, "No that's far enough.. I can squeeze through." She can only get her head and left arm through, "Ok, you're gonna have to push." They do as she says, but the brakes make a strange sound. Sampson asks, "What was that?" They hear it again. "Oh Christ! It's the brakes!" They scurry to get her back. The brakes are released and drop the elevator, but stop just before her head hits the ground, "Pull me back. Pull me back. Pull me back inside!" she gets her arm in, "Pull me back inside!" The elevator moves up and doesn't stop.