EXT. ATMOSPHERE STATION: The giant metal volcano rumbles away, unaware of the happenings of both inside and outside itself.

INT. OPERATIONS: Burke, Ripley, Hicks, Hudson and Vasquez are all bent over a large horizontal video screen, like an illumination chart table. Newt hops from one foot to the other to see.

RIPLEY: So, this service tunnel must be how they're moving back and forth.

She traces a finger down a tunnel on the map.

HICKS: That's right. It moves from the processing station right into the sub-level here. Come down on that. Okay, come over. Hold it. Go back. Punch that in right there.

He touches a spot on the screen. Newt moves up next to Hicks. He picks her up and seats her on the corner of the table.

Hicks watches closely as the blueprint is moved around.

HICKS: No. It's back.

RIPLEY: Well, there's a pressure door at this end. Couldn't we put a remote sentry unit in the tunnel and then seal that door.

HICKS: Yeah. That'll work. But, we gotta' figure on them getting into the complex.

RIPLEY: That's right. So, we repair the barricades at these intersections...

HICKS: Right.

RIPLEY: ...and weld plate-steel over these ducts here and here and...here. That way, they can only come at us from these two corridors.

HICKS: Alright, then we put the other sentry units here and here. Right?

RIPLEY: Right.

Hicks contemplates her game plan and looks over at her.

HICKS: Outstanding. Now all we need is a deck of cards.

He straightens up, satisfied.

HICKS: All right, people, let's move like we've got a purpose.

HUDSON: Aye-firmative.

NEWT (imitating Hudson): Aye-firmative.

INT. OPERATIONS - TACTICAL / TIGHT-ON MONITORS: Showing Hudson and Vasquez setting up one of the sentry units. Hicks is setting up the Keyboard Displays for the four sentry units. He opens them and types in some commands.

CLOSE-UP ON DISPLAY: As Hicks types, the screen's commands are highlighted. He sets the units to 'SEARCH' and 'AUTO.'

INT. SERVICE TUNNEL - SUB-LEVEL: A long straight service tunnel, lined with conduit, seems to go on forever. Vasquez and Hudson have finished setting up two of the robot sentry guns on tripods in the tunnel.

HUDSON: Do your thing, baby. Come on, come on, Vasquez. Let's get the hell out of here. (into headset) Hudson here. A and B sentries are in place and keyed.

HICKS (voice over): Right.

INT. OPERATIONS - TACTICAL: Hicks sets the units to 'ARMED.'

HICKS: Stand-by. Arming now. Test it, Hudson.

INT. SERVICE TUNNEL - SUB-LEVEL

HUDSON (to Vasquez): Do it!

VASQUEZ: Fire in the hole!

She hurls a wastebasket down the tunnel, into the automatic field of fire.

The sentry guns swivel smoothly, the wastebasket bounces once...and is riddled by two quick bursts.

HUDSON: Okay! Let's get the hell out of here!

They retreat behind a heavy steel Fire Door, which they slide down closed on it's tracks.

HUDSON: We're sealing the tunnel. Come on, baby.