Spoiler
Chapter 1 - Asylum. Hicks and a man called Stone are being interrogated by Weyland aboard the FTL ship. Weyland demands the "message" from Stone. Stone refuses and is executed. Hicks is injected by a scientist named Levy with a truth serum to try and make him talk. It doesn't. Weyland grills Hicks, highlighting events that have led to this point. We flashback to the Legato research ship, dispatched after Burke confirmed XT presence on LV-426. The Legato has obtained specimens from the derelict alien vessel, codenamed "Origin" and is experimenting on a cargo of hijacked cryosleepers (ala Alien Resurrection). The outbound ship receives orders to return to LV-426 in order to intercept the USS Sulaco which is leaving orbit. Xeno specimens escape and begin wreaking havoc aboard the Legato. We join Lisbeth, a female colonist, part of the hijacked cargo, who awakens to the madness around her. Lisbeth must stealthily search the ship as she looks desperately for her mother and father. En route she bumps into two fellow colonists, Stone and Turk. Stone informs Lisbeth that the Legato has docked via umbilical to another ship (Sulaco) and that he plans to cross the umbilical and send out a request for help. He asks Lisbeth to join him. Lisbeth insists on finding her family. Stone and Turk leave Lisbeth as they head for the Sulaco. After several dangerous encounters, Lisbeth eventually finds her mother who has been facehugged and her father who has been pumped full of bullet holes. Lisbeth now seeks revenge againt the Alien and W-Y. Stone pleads for Lisbeth to join him onboard the Sulaco. Instead, Lisbeth heads to the engineering deck of the Legato, battling PMC's and Aliens on the way. Lisbeth feels pain in her chest. She realises she is host to the monsters. She turns off the ships's cooling unit and sets the ship to self destruct taking the PMC's and the Aliens with her.
Chapter 2 - Awakening. Stone and Turk have arrived in the Hypersleep chamber of the Sulaco. They are pursued by W-Y PMC's and Aliens from the Legato and therefore quickly revive the only military officer they find, Corporal Hicks. Hicks is stunned to see Ripley with a facehugger wrapped to her head but before he can realise what is happening, the PMC's burst into the vault. There is a brief exchange of gunfire which results in acid blood being spilt from the Facehugger triggering the Sulaco emergency systems. Stone and Hicks take cover from the mercs. Turk is grabbed and tossed aside into Hicks empty cryo chamber just as the EEV release system is activated. Newt, Ripley, the remains of Bishop and Turk are launched into space. Hicks and Stone escape the mercs to the security checkpoint above them and gear up for battle. We learn that Stone is ex-military hence his handiness with a weapon. Their plan is to send a distress signal but the Sulaco only possesses a short range transmitter. However, the Sulaco is on course with Fury 161 which has a long range communications array. They head for a service skiff which they will be able to escape the ship in. En route, Stone is contacted by Lisbeth (at this point in the story she has just discovered her dead parents) She tells Stone that she plans to detonate the Legato. Hicks and Stone must make a mad dash to the weapons deck of the Sulaco, once there Stone uses one of the Sulaco's orbital cannons to destroy the umbilical, seperating the two ships. Hicks and Stone watch as the Legato is destroyed. Hicks and Stone finally escape in the service skiff, they land on the surface of Fury 161, where Hicks tells them it will be a two day hike to the nearest facility. As Hicks and Stone finally reach the penal colony they witness the ending of Alien 3 as Ripley sacrifices herself. Hicks and Stone are then captured and taken to the W-Y FTL ship for interrogation. The ship and the Sulaco are returned to LV-426.
Chapter 3 - Deliverance. We are back where we started. Stone has just been executed as Weyland grills Hicks. The scientist, Levy listens with concern as Weyland constantly seems unconcerned with the human cost as opposed to the importance of the Alien. Levy reaches for a pulse rifle and draws on Weyland. Levy tells Weyland that he can no longer be a part of this madness. He takes Hicks and they fight their way out of the FTL ship which we realise is dry docked on LV-426 next to the "Origin" site. They need to send the message which will expose W-Y's involvement in the murder of the colonists. They touch down on the surface and fight their way through several lab modules which are being established around the "Origin" site perimeter. Levy and Hicks briefly seperate as Levy attempts to purge posion gas from the modules so that they can safely pass. Coming under heavy fire from APC's, Hicks and Levy realise that the only way they can reach the communications array is to travel through the treacherous underground cave system of LV-426.
Chapter 4 - Redemption. Hicks and Levy make their way through the dark network of caves. They eventually realise that they are in a hive. The Aliens who survived the blast of the Atmosphere Processor, have nested within these tunnels, and a new Queen awaits. Hicks and Levy disturb the Queen, who gives chase through the claustrophobic interiors of the caverns. They lose the Queen in smaller spaces but are soon pursued by a Crusher Alien, after an intense battle, the Crusher is felled and Hicks and Levy escape the caves. They fight their way through the main compound as chaos erupts around them, the underground Aliens are attacking the W-Y mercs. Through the carnage, Hicks and Levy eventually make it to the communications array. Hicks must activate the dish, whilst Levy, using sentry guns must hold off the pressing xeno attack to buy Hicks time. They succeed. They must then ascend to the top of the facility to send the message. They are under constant onslaught as they try to align the dish. They soon begin to transmit the message. Weyland comes over the PA system and attempts to appeal to Levy. Levy is not interested. As the signal is 90% complete, a barrage of rockets are fired by W-Y, taking out the dish. A squad of APC's roll up to the facility, destroying the last of the xenos. Hicks and Levy are defeated. They have no choice but to surrender. Hicks asks Levy if any of the message got out. Some of it, he replies.
We cut to Hicks's After Action report. Or what part of it was transmitted at least. Cut to black and a barracks door is flung open as a Marine officer shouts at the grunts that a distress signal has just been received, sent out from LV-426. A groggy soldier awakens from his bunk and we see that it is Corporal Winter.
The End.
