Hey everyone! Just wanted to shout everybody out who's reading my story this far! Whether you're reviewing or not, I know there are people out there reading and that alone is what gives me inspiration to keep going. I'm glad people are legitimately excited to read and find out what happens and if that includes you then I encourage you to let me know however you want!

Also, I decided to write an M rated one shot for Jeanette and Simon that ties into last chapter. It should be coming out same time as this chapter so keep your eyes peeled for it.

Anyway, when we left the Chipmunks and Chipettes, they had just been discovered by a horde of Martians. Will they make it out of the Omortson alive? Read on to find out that and more!

Chapter 19: The Last Stand

Alvin's POV

"God dammit!" I exclaimed.

"Ok this is it everyone," Jeanette said surprisingly calmly. "Everybody get your Mars suits on! They're gonna break in!"

We all wasted no time in scrambling around camp, picking up the various pieces of our Mars suits wherever we had left them and throwing them on as quickly as possibly. The army of aliens was already busy trying to barge through the garage door, as we could see on the camera feed.

I noticed Brit having trouble fitting her suit back on, given the bulge in her belly, so I rushed to her side. Even with my help, it took a lot of effort and she obviously wasn't comfortable with how tight it was.

The Martians finally managed to claw a big hole through the garage door. As they were pouring through, they made very sure to thoroughly check our rover, not wanting to repeat their mistakes of last time. We were all just now fitting headsets onto our heads and twisting on our glass helmets, meanwhile the red beasts had made their way towards the first door to the compression chamber. As they tried to break in, steam was arising from inside the chamber.

"Alert!" The computer warned us. "Base under attack!"

"Computer shut up!" Brittany shouted.

It did as she asked, just as the Martians had broken their way into the compression chamber. One more door and they were in, and there was no more air.

"Remember the plan everybody!" I said. "We stick together, we get out of this alive, and we go find that ship that's gonna get us out of here!"

Suddenly even just the smallest breach, torn through by the aliens, in the final door caused in a millisecond all of the air and the heat to escape outside through that one tiny opening. The sudden change in density created an explosion that blasted the door wide open and caused the whole base to shake. Eleanor fell on her back because she wasn't ready.

For a second the Martians looked frightened by the blast, as the entire horde took a step back. But it wasn't long before their confidence and determination took back over and they were charging through the giant gaping hole where the compression chamber used to be.

It was hard to tell how many there were, but it was definitely at least a couple hundred.

"Computer," Jeanette said, keeping her cool, "show me hallway F and bring up the ammo counts of sentry guns A and B."

Suddenly, most of the table became a camera feed coming from behind the first two sentry guns, pointing down the hall so that we could see the fence that we had built. Because of the blast, only the dim emergency lights were on in the hall, making it kind of difficult to see. In the top left corner of the screen was a rectangular bar that said: "SENTRY A: 400" and "Sentry B: 400".

We all waited with held breaths, watching the screen underneath us for the Martians to appear around the corner. If our defenses were set up well, they were going to be met with Hell. If they weren't, then it was us who was going to be met with Hell.

Suddenly, the first beast appeared from behind the corner on the left. Both sentry guns quickly snapped their barrels in its directions and began unleashing bullets. More and more began flooding around the corner, causing the guns to go back and forth from alien to alien, hosing them down as quickly as they could.

Meanwhile, the ammo counter for both guns was dropping at an alarming rate.

"Sentry gun A is down to 300," Jeanette said. A few seconds later she added, "So is B."

The smoke from the gunfire was making it almost impossible to see anything. But the Martians had definitely pushed their way to the fence. The sentry guns, designed to eliminate the nearest threat, were busy twisting back and forth and constantly unleashing fire.

"Gun A is at 200," Jeanette updated us. "Now B is too."

"It's a shooting gallery down there," I chuckled, watching the screen without blinking.

Most of the Martians stayed on the ground, trying to chew through the wires at the bottom. But the sentry guns were looking to be very effective at taking them down before they could make it through. Some of the beasts tried climbing the fence in an attempt to make it over the gap near the ceiling, however before any of them could even make it halfway up one of the sentry guns would spot it, lift it's barrel up towards it and hose it down.

An annoying alarm suddenly started going off, coming from the table. The bar at the top left corner of the screen started flashing as sentry gun A's ammo count dipped below 100, followed a few seconds later by B.

The horde of Martians didn't seem deterred at all. In fact, they only seemed to push harder, even though they couldn't have any idea that our first line of defense was almost defeated. When an alien got gunned down, another would quickly push its corpse out of the way and take its place.

Sentry gun A suddenly ceased firing as its ammo counter hit zero. For a few moments, gun B was all by itself trying to fend off the horde. But that was short-lived too, as its ammo counter also hit 0. Both guns were helplessly reduced to twisting back and forth, pointing from Martian to Martian, as if they wished they could keep firing.

The red beasts, meanwhile, wasted no time in chewing multiple holes right through our wire mesh wall and charging through. Before moving on towards us, they made it a point to sink their teeth and claws into the tripods that were holding up the sentry guns until both of them were torn to the ground.

Brittany put her hand over her mouth in fear, causing my protective instincts to kick in and wrap my arms around her warmly.

"Show me hallway J and bring up the ammo counts of Sentry guns C and D," Jeanette commanded to the table.

The camera feed suddenly switched to a similar view of our second line of defense, where our final mesh wall and two sentry guns waited patiently for the attack. They didn't have to wait very long.

The second Martians charged around the corner, they were met with bullets. The ammo counter in the top left corner began to countdown again from four hundred. These gunshots were louder and obviously much closer than before. They pushed forward unfazed by all of their pack mates getting ripped to shreds around them until they were right up on the fence.

"Come on…" Theo prayed aloud.

"Sentry gun C is down to 300 bullets," Jeanette murmured. "And… so is gun D."

"Jesus, they're wall to wall over there," I said.

They pushed and clawed and desperately and savagely tried to rip through the fence. The lonely few who tried to climb were shredded as soon as they stood out from the crowd. Some of their bodies fell back to the ground, some hung lifeless halfway up on the wires. Corpses were starting to build up big time. But it still didn't faze them or turn them away.

"200 bullets in C. D is right behind it."

My heart sank as I realized it was going to be up to us. With the others following my lead, I quickly began to pick up and prepare and weapons I could hold. I chose an AR-15, two military grade pistols and plenty of ammo for all three, also making sure to pick up a motion tracker.

Suddenly, the alarm began to sound off, letting us know the sentry gun C had just dipped below one hundred rounds. We watched the screen intently, despite it being dark and smoky. Sentry gun D was down to a hundred now. Both guns kept firing but were getting met with more screams and angry snarls from the Martians.

Sentry gun C fell to ten rounds, then in an instant, it dropped to zero. It was useless. "Shit," I cursed as I turned and was just about to start sprinting towards the blockade.

"Wait!" Simon exclaimed.

I stopped and looked back at the screen. Both guns had stopped firing. But Sentry gun D's ammo counter still read 15. They were still twisting back and forth, looking for something to shoot.

"It looks like they're retreating!" Simon said gleefully.

We all took deep breaths of relief. The horde did indeed look to be disappearing around the corner. I took a knee because I was so out of breath. Just to double check, I turned on my motion tracker and watched as the giant blob that was the martian army moved farther and farther away from us. "I think he's right, I said."

But just as I finished speaking, the blob halted in its tracks. It stayed put for a little while, but we could still hear the beasts scratching and screeching around inside of the base.

"What're they up to?" Simon asked suspiciously.

Suddenly, my tracker showed the horde stretching out with chunks of it moving towards us. "Oh God," I muttered.

"What is it?" Eleanor asked me in a worried voice.

"They're coming back."

Jeanette's POV

"You all know what to do!" I shouted.

Without another word, every one of us began scrambling towards the blockade. Once there, we began climbing to the tunnel at the top as fast as our legs could carry our bodies, our suits, and our weapons.

"What does your tracker say, Alvin?" I asked, panting.

He checked, "Whole group is heading back our way. Looks like they're gonna be back at that corner soon."

Almost out of breath, I was the first to reach the top and point my loaded gun's barrel down the tunnel. I was soon joined by Alvin, Simon, Theodore, Eleanor, and finally Brittany. All of them followed my lead and aimed their guns down the other end. "How about now?" I asked with no response. "Alvin?"

"Uh…" he fumbled around with his tracker for a moment, clearly nervous. "25 meters but getting closer."

"That can't be," I said. "That would mean they're in hall J and I don't hear the Sentry gun going off."

"I'm telling you they're at 21 meters and counting!"

"Ok, ok," I said, trying to calm everyone down. "How many?"

"Erm… dozens."

Sweat was beginning to trickle down all of our foreheads. It was hard to keep from shaking with how terrified I was.

"18 meters."

"Ok they're past the gun!"

"15 meters," Alvin continued, jittering frantically. "11! They're closing in real quick!"

"We're gonna be alright," I assured everyone as best I could. "They have to come thru this tunnel. Just don't waste ammo."

"5 meters!"

"Ok they're right outside the blockade! Everyone get ready!"

The others all seemed to tense up.

"3 meters…"

"That can't be," I scolded Alvin, "that would mean they're in the tunnel!"

"It's reading right, man, look!" Alvin retorted hysterically, showing me the tracker's screen.

"They found another way in," I whispered to myself in shock. "Something we missed."

"We didn't miss anything!" Simon assured me.

"2 meters… one meter… they're right on top of us!"

We all began to dart our eyes in every direction frantically, confused. Suddenly, it hit me. I looked straight down to the ground beneath us at the foot of the metal blockade and pointed my gun and my flashlight in that direction as well.

"Oh my God," Brittany muttered in horror.

"They're underneath the floors," I tried to say quietly. "Everybody get into the tunnel. Right now."

Just as I had finished speaking, a loud scratching and clanking noise could be heard underneath the pile of bones down below. We could hear an angry hiss as a Martian used his claw to poke a hole through a floorboard.

Alvin led the way through the tunnel, followed by Brittany, then Theodore, then Ellie. I went in fifth while Simon insisted on bringing up the rear. We all moved through the tunnel as quickly as we could, hunched over, Alvin keeping a sharp eye on his end for any Martians and Simon doing his best to keep up while doing the same. We could hear them all pouring up through the floor, sniffing for us, screeching at each other, pacing around. Suddenly, one popped its head up to peer through the tunnel on Simon's side. It let out a loud howl before Simon aimed his rifle and took a near-perfect shot that took the beast out. We heard it tumble down the side of the blockade and crash into the bones on the ground. The only problem was now they knew where we were.

Eleanor and I turned around and pointed our guns in that direction, as we could hear them angrily begin to climb up the side of the wall.

"Keep pushing forward!" I urged everybody, but they all slowed down and seemed more fixated on defense, staring in our direction.

The next Martian who poked his head into the tunnel got popped by yours truly. He fell to the floor the same way the last one had.

The next one, however, Simon took a shot at and missed pretty badly. This allowed the hissing scum into the tunnel and to begin crawling towards us.

Eleanor screamed, shut both her eyes, and took a shot. It was a bullzeye, right between the beast's eyes.

I turned around just long enough to scold her, "both eyes open when you shoot."

"I'm sorry," she said.

"You're gonna be sorry if poor shooting costs you your life. Now come on, let's push forward."

More and more Martians kept entering the tunnel to chase after us, and corpses were begging to build up and block us off from being able to shoot them. Until, of course, they pushed their dead brothers aside. It was getting messy, trying to back up hunched over and shoot frantically at the same time.

Just as Alvin had almost made it to the other end, an alien jumped up and blocked his path. Alvin jumped and dropped his gun. Screeching at the eldest chipmunk, the beast began scrambling his way. But out of nowhere, Brittany fired her gun and wounded the Martian's right leg. It fell onto its stomach just a foot away from Alvin's feet, impaling itself on a jagged edge of metal. It screamed and hissed and thrashed around, almost managing to get itself up. In a panic, Brittany began unloading bullets on the thing without really aiming. One hit its back, the next missed, the next two hit its head, killing it. But she was in such a shock that she didn't stop. More and more shots hit the creatures dead corpse.

"Brittany it's dead!" Alvin exclaimed, getting back on his feet. "You're just wasting ammo!"

She finally eased down, just in time for another Martian to appear at that same end of the tunnel.

As Alvin, Brittany, Theo and Ellie fought to get us out of the tunnel, Simon and I were desperately trying to fend off the Martians that were chasing us from the other end. They were getting closer and closer each passing moment.

I heard Alvin yell behind us, "We need help over here!''

Simon's POV

I looked at Jeanette and she looked back at me. "Go," I said. "Help them out. I got this."

"No you don't!" she protested after firing a few shots. "You can't even aim properly!"

"Trust me, you have to help them. I'll catch up."

She suddenly looked at me suspiciously, as she was obviously catching on. "Don't do that," she said sternly. "Don't talk to me like I'm stupid. 'Cause I'm not stupid."

"I never said you were," I sighed, before bringing down yet another Martian.

Alvin and the others had not been able to exit the tunnel, as the aliens on that side were too overwhelming. Meanwhile on my side it was getting tighter and tighter.

"Look, just go help them."

She hesitated, but seeing that the situation was getting more and more hopeless, she finally joined the other four. Together, they made relatively quick work of the Martians outside the tunnel, clearing an opening for them to exit.

Backing up, I was doing my best to follow them. "Come on, Si!" Theodore called to me.

I was so busy shooting, and missing half of the time. Moving in his direction was just another added factor. But I did eventually make it out, joining the rest.

"Now come on, we gotta run!" Alvin exclaimed.

"No" I said sternly, continuing to fire along with Theo down the tunnel. "We can't. We can't outrun them."

"Then what do you propose we do?" he yelled.

"Someone has to stay behind," I said solemnly. "Someone has to hold them in the tunnel. Otherwise none of us have a chance."

"No!" Jeanette said defiantly. "We're not splitting up. We'll all stay and fight."

"They're not gonna stop, Jeannie," I said, in between shots. "They're not gonna stop. There's too many. I just have to hold them off long enough for you all to escape."

"Simon I am not leaving you behind!" Jeanette argued.

"Then you're sentencing your entire crew to death."

Her jaw dropped at this. She looked at her sisters, and Alvin and Theo,while we were still just busy holding off the horde through the tunnel.

"There isn't much time. You're the captain here, and you need to make the tough decision for the greater good."

A tear fell down her cheek. "I can't," she admitted. "I can't just let you die. I'm not that strong."

"Theo watch my back for a second," I said, before turning to Jeanette. "Look, you're the strongest, smartest, most beautiful woman I've ever met. And I'd rather die right here knowing you, like I have, than go my whole life and die old in my bed years from now without you."

Everyone was full on crying now, especially Jeanette. "Please don't."

I placed my helmet against hers and looked deep into her eyes one last time. It took more effort with the eye patch but still well worth it. "I'll always be with you," I whispered. And with that I turned away and went right back to firing shots blindly down the tunnel. "Theo, Alvin, everybody, I've always loved you guys so much. I couldn't have asked for a family."

The Martians were pushing harder, almost being halfway through the tunnel.

"Go now!" I commanded.

They obeyed me, suddenly sprinting down the blockade as fast as their little legs could carry them. I kept shooting, missing most of my shots. I could only hope to buy them just enough time to get out of this base. I knew that this was the end, but if dying meant saving Eleanor, Brittany, my brothers, and Jeanette, then it was well worth it.

Eleanor's POV

One of us was pregnant. Two of us were totally out of shape. All of us were carrying multiple heavy weapons and a hot Mars suit. And all of us were emotionally torn apart by the decision we just had to make. And yet, each one of us moved faster than I think we ever had in our lives.

We sprinted through the hallways, past the wreckages of the sentry guns, through the holes in the wire mesh fences, Alvin's eyes always on his motion tracker. So much so that he almost missed the turn that was going to lead us to the garage.

We could still hear gunshots going on behind us as we ran, meaning Simon was still alive and fighting at that point. But we didn't have enough time to focus on that.

We finally came up to where the blast had completely torn apart the compression chamber. Being careful not to cut our suits on jagged steel edges, we navigated our ways into the garage.

Suddenly, we heard a blood curdling scream coming from back the way we came. Jeanette gasped and began to cry.

I put a hand on her shoulder and said, "we need to keep moving, Jeannie. Come on. There's time for this later."

She nodded and followed us to where the rover was still parked. It looked pretty scratched up, but still looked functionable to me. We all piled in as quickly as the compression chamber would allow us and didn't bother buckling our seat belts or even taking off our helmets. The hole that the Martians had torn through the garage door looked just big enough for us to roll through, so Alvin decided to just go for it.

After accidentally dropping the keys from being in too much of a hurry, he put them in the ignition, twisted them, and as soon as the engine started humming to life, he put the rover in gear and slammed the gas pedal.

The vehicle swerved forward with a jolt and through the hole in the door, scratching its right side pretty bad along the way.

"It's ok," Alvin assured us. "She's tough. She can take it."

He suddenly jerked us to the left, forcing the rover to drift roughly and kick up Mars dust behind us. He began navigating us skillfully through the field of solar panels, which already looked like they were getting pretty dusty again.

Swerving left and right to avoid the panels, we were all being flung about the cabin portion of the vehicle. I stood up and peered into the cockpit just in time to see a Martian right in our path. He stood in a stance that looked like he was ready to pounce. Alvin stubbornly revved his engine and stepped on the gas even harder. The rover accelerated, but the alien didn't move a muscle. Just as we hit 60 miles per hour, the right side of our beefed up front bumper collided with the Martian's skull, splattering his brains onto the dome-shaped windshield. As the front-right tire ran over its corpse it was launched into the air along with the entire right side of the rover. Alvin tried to regain control of the vehicle but it was too late.

The whole thing, with us unbuckled inside, flipped onto its left side and rolled completely over a few times before finally coming to rest on its right side with a crunch.

So things are picking up, and I don't expect them to come back down. Thoughts? Opinions? Questions? Ideas? There's a review button for that! And you don't have to have a fanfiction account to leave one!

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Finally, be SURE to read that one-shot of Jeanette and Simon! I'm really proud of it!