Hi!

I've been looking for something to write after finishing my first chaptered Sterek fic and decided to do a sort of fusion between Teen Wolf and The 100. I will follow the events off the 100, adding a few things from the books (for example, the Ark is not just made of space stations but also as 3 main exodus ships where people live, Phoenix, Walden and Arcadia) but the story will mostly follow Stiles and Derek, who won't always be part of the 100's main events.

So, I'll try to explain what happens, and I hope people who haven't seen the 100 will understand the story.

Enjoy!

Chapter 1

He watched them, standing behind the airlock's door, waiting for that button to be pushed. His mother was standing tall, ignoring the tears falling down her face as she gazed at her son one last time. His father wasn't as strong, but he managed to utter 'We love you. Be strong.' before Chancellor Jaha gave the order and they were ejected out of the Ark.

Derek woke up with a start, his heart pounding in his chest. He looked around him, cataloguing everything in his tiny room and forcing himself to take deep breaths. His night stand was there; on it was the book Stiles had shoved into his hands months ago, muttering a quick 'Happy birthday'. The old painting that used to belong to his grandfather was still on the cold steel wall. His uniform was still on the only hanger he owned, hooked to a piece of metal next to the archway leading to the rest of his quarters.

When he got his breathing under control, Derek pealed the sweat-soaked sheet off his body and started his morning routine with push-ups and sit-ups under the archway, the only place in his quarters with enough room. Then he took a quick shower, setting an alarm so he wouldn't stay under the lukewarm water more than five minutes; he had learned the hard way not to use all of his monthly water allowance too fast. Finally, he put on his guard's uniform and ate a small bowl of dry oatmeal, noting that he was running low again, before walking out to start his shift.

Derek never thought he would become a guard, he never thought he would live in Walden either, yet there he was. He walked slowly through the ship, occasionally waving, saying 'Hi' or nodding respectfully at the people he met on the way. It was still early but the people in Walden were hard workers, most of them started in the early hours of the morning, others were coming back after working all night.

Six years ago, like most teenagers in Phoenix, Derek would have refused to get out of bed before 9 AM. His mother was a doctor, working closely with Abby Griffin, the Chief Medical Officer and his father worked for the Chancellor. He had a great childhood, better than most on the Ark, but then his parents were floated and he had felt his entire world crumble under him.

Talia, Derek's mother, had stolen morphine from the hospital. One of her friends had a dying child, a six-year-old girl with an incurable cancer. The law was strict on the subject of pain medicine; they were only used for the people they could save.

Derek had never blamed his parents for trying to help a suffering child, he blamed the law. At 16, he wasn't able to cope with the loss of his parents and acted out. He punched a guard, repeatedly, and ended up in confinement, where they put all the criminals under 18.

Every crime was punishable by death on the Ark, except for minors. They were put in cells until their 18th birthday, and then they got reviewed. After two years in the sky box, Derek was pardoned. He was the last one; everyone reviewed ever since, no matter the crime, had been floated.

As he reached the small office room the guards used as a station, Derek saw his boss, John Stilinski, sitting at the only desk they had, staring at the computer screen in front of him. It was John that had saved Derek. When he came out of confinement, he had nothing; nowhere to live, no job and no hope. Then John came to him and offered him his couch and an entry job as a guard. It wasn't much, but after a few months of living with the man and his 13-year-old son, Stiles, Derek had found his place in the world.

"Morning Derek." John said without looking up from the screen.

"Good Morning Sir. More admin work?"

"Yeah, the council is worried that the Waldenites are going to rebel against them and want us to do more patrols and break any meeting that might look suspicious… without offering more men of course." John let out a frustrated sigh. "And they're right to worry since the oxygen level was reduced, again… Remind me why I chose to work for those people?"

"To get that nice place on Phoenix so Stiles could have a better future?" Derek answered automatically, so used to the man asking that same question at least once a month.

"For what good it did, he still ended up in confinement." John said as his mood suddenly turned somber.

Derek remained silent for a moment, staring at his feet before looking back up with a concerned look on his face.

"Is he alright?"

"I went to see him yesterday. You know how he is, he's acting like it isn't a big deal but I know he's as scared as I am."

Derek almost made the mistake of saying that everything would be alright, that Stiles would get reviewed in two months and get pardoned. But he knew better, no one got pardoned anymore, not even for something as stupid as a trip to the farm afterhours. Sometimes he wondered what the hell Stiles had been thinking.

On the other side of the Ark, Stiles was sitting on his bed with a book in his hands. He loved books; he could never understand why the people of the Ark disregarded them as simple vestiges of the past, to be stored and looked at in a stuffy library. He only ever had two of his own; those books had belonged to his direct ancestors, his great-great-great grandfather or something like that, when he had boarded the exodus ship before the nuclear apocalypse 97 years ago. His mother had given them to him before she died during an epidemic that killed 36 Waldenites.

The book he was currently pretending to read to avoid his annoying cellmate, John Murphy, was called "Unseen academicals" by Terry Pratchett. His mother had read it to him so many times, he could probably re-write it by memory alone. He had given the other one, "Of Mice and Men" by John Steinbeck, to Derek on his last birthday. He knew Derek loved that book, he had read it over and over again when he had lived with them. It had earned Stiles weeks of teasing from his dad, who knew about Stiles' crush before he had figured it out himself.

Suddenly, a guard barged in and ordered them to face the wall. Both prisoners got up from their bed, Stiles quickly hiding his book under his clothes.

"What's going on?" Stiles asked when he noticed that there were three guards instead of the usual two for routine surprise searches.

"Hold out your right arm." One of the guards ordered, ignoring Stiles' question. They had brought a box full of large metallic bracelets and two of the guards took one before standing on each prisoner's right.

"Hold out your right arm." The guard repeated. This time they complied and the guards rolled up their sleeve before putting a bracelet around their wrist. They both winced as the inside of the bracelets had small needles that penetrated their arm.

"What the fuck?!" Murphy yelled, casting an angry look behind his shoulder at the guard who had put the bracelet on him before grabbing him from the back of his neck.

Stiles' guard did the same with him and they were lead out of their cell.

As he was walking back to his quarters at the end of his shift, Derek suddenly stopped when he heard John Stilinski calling his name behind him. He turned around to see his boss running towards him, his face flushed and his eyes wide opened in panic.

"I need your help. Stiles… the kids… they're being sent to the ground." John started, pausing a few times to catch his breath.

"What?"

"A friend of mine, a higher up, he told me… the Chancellor ordered it. They're sending the kids to see if Earth is survivable again."

"Why would they do that?"

"He doesn't know, but listen; I need you to go on level 9, that's where the drop ships are. Go have a look around, see if it looks like they're planning a launch. I need to know if it's true before I do anything. While you do that, I'll go see if I can see Stiles, maybe warn him or something."

Derek nodded in agreement and they immediately went their separate ways. Derek ran to his quarters, grabbing a bag and filling it with every item of food he had left and the three bottles of water he always kept on his kitchen counter. Hopefully the launch wouldn't happen for a while but he knew that with something so important, the orders were carried out right after they were given and if Stiles was going to Earth then so was he. He was almost out of the door when he thought of something else; he turned around, ran to his room and grabbed his book before rushing out.

His heart was pounding as he forced himself to walk towards level 9, so he wouldn't draw attention to himself. When he reached the right level, there was a lot more guards than he had expected, something was definitely going on. Derek tried to blend in, hiding his bag as much as he could while walking as if he had a reason to be there.

When he arrived at the drop ship, there was no doubt that they would launch soon. Guards were pushing, dragging and sometimes carrying teenagers in the ship one by one.

He studied the scene before him and noticed that only one guard stood in front of the compartment designed to contain supplies. He decided quickly to walk around the ship, approaching the guard discretely from behind.

There was no way Derek would be able to get in the compartment without being seen by the guard, but he was far enough from the others that they wouldn't notice if he was gone. Walking stealthily, Derek grabbed the guard from behind, his arm around the man throat, and dragged him backward until they were hidden. He squeezed until he felt the guard lose consciousness and dropped him somewhere hidden before opening the compartment as slowly as possible. It still made some noise and he closed it quickly after squeezing himself in.

He waited anxiously for five minutes, listening to any noise that could indicate that someone was coming, before he allowed himself to relax and look around. The compartment was practically empty. There was one big crate, hopefully full of food but Derek couldn't open it since it had to stay secured for the landing, a small first aid kit attached to the wall and nothing else. Either they were running out off supplies or the council wasn't extremely confident about the success of this expedition.

He sat down and waited until he felt the ship move, causing some of the kids on the upper level to scream in fear. Derek knew he wasn't in a very good part of the ship, he was at the edge, so if the walls got damaged, he could get ejected or lose all of the oxygen in the room, and he was at the bottom so if the ship crashed, he was first in line to die. But he was in, that was better than nothing.

Remembering vaguely his lessons about the trip back to Earth, he tried to secure himself by tying his bag at a pipe on the wall and holding on to it. Hopefully, he wouldn't get killed during the landing.

… 95, 96, 97, 98, 99… 100. They were a hundred in the drop ship. Stiles had hoped that counting people would help him breath but the panic attack wasn't going anywhere. He didn't know those guys, he had only been in confinement for a few weeks and the only other prisoner he had met was Murphy, who was a douchebag on a good day.

His father wasn't there, Scott wasn't there and neither was Derek. This wasn't an Exodus, it was a suicide mission. His fear was confirmed when the Chancellor's message started. They were 'expendable' as he said. Stiles had taken Scott to the farm, somewhere they had both been curious about, for his best friend's 18th birthday. A guard saw them and ran after them. They could have outrun him, he was far enough, but Scott had asthma and he could run as fast as Stiles. So Stiles sacrificed himself, giving time for Scott to run. And now he was 'Expendable'.

After the initial shock of the launch was gone, people had started chatting. Those idiots were exited; they didn't even realize that they had left their families behind or that they were about to crash on Earth with a ship that was 100 years old.

Some idiot had cut the straps protecting him to float around in zero gravity, two others soon followed even though a blond girl sitting next to Jaha's son (and what the hell was he doing here?) warned them not to. Stiles knew what would happen, they had hit the atmosphere not long ago, which meant that the parachutes would soon be deployed and the shock would send them flying. As soon as that scenario had crossed Stiles' mind, it happened.

Derek had seriously underestimated the power of gravity. He had held on to his bag as his body had been propelled towards the metal roof but it slipped out of his grasp when he fell back down, hitting his head violently against the wall. He barely had time to realize what was happening before he lost consciousness.

Just as quickly as the chaos of landing had started, it stopped. Someone told them to listen and Stiles heard it for the first time; silence, real silence. There was no machine hum, no air conditioning, nothing.

The straps holding them unlocked themselves and everyone started to make their way down. Stiles followed everyone, stopping only a few seconds to watch as the first idiot who had cut his straps and the blond girl who had tried to warn them checked the pulse of the two guys who had tried it anyway. There was no use, they were dead.

Once Stiles reached the group in front of the door, he saw a glimpse of someone wearing a guard's uniform and he felt his heart skip a beat. Then he saw the man's face and it wasn't his Dad or Derek. A girl called the guy Bellamy and ran in his arms. She called him her brother and everyone started to whisper around him. He had heard of them, Bellamy and Octavia Blake, brother and sister. It was rare for people to risk having another child on the Ark; the sentence was death for both parents and confinement for the child until they reached 18.

Suddenly, Bellamy opened the door and they were all blinded by the sun light. The air was so pure it made Stiles dizzy and he staggered forward as everyone around him ran out in joy. His legs wobbled as they tried to get used to the Earth's gravity so he chose to sit on the forest's ground, admiring the beauty of nature that he had only ever heard off.

It took a while for everyone to calm down, except for the blond girl, Clarke Griffin he found out later, who was right next to him, using the ship as a table to draw on a map. Wells, the Chancellor's son, arrived and immediately started the conversation with "We got problems." and Stiles hid a snort by coughing as it was probably the understatement of the year.

"The communications system is dead." He continued. "I went to the roof; a dozen panels are missing, heat fried the wires."

"Well, all that matters right now is getting to Mount Weather." Clarke said, pointing at the map.

Stiles remembered vaguely the Chancellor talking about that place in his message; it was supposed to be a huge bunker hidden in the mountain, with enough supplies for them to survive. It was also where they were supposed to land, but with the way Clarke pointed at the map, showing Wells where they were and where they needed to be, it didn't seem like they were in the right place.

Then other people joined the conversation and things escalated quickly. Wells and Clarke tried to explain that they had to go to Mount Weather but Bellamy and his clique refused to listen and told them to go get the supplies for everyone. "Let the privileged do the hard work for a change." He said as everyone around him agreed.

"You're not listening. We all need to go." Wells explained.

"Look at this everybody…" Murphy said as he approached Wells. "The Chancellor of Earth."

Stiles did not like where this was going and sure enough, they started to fight. Then Finn, the idiot who got two guys killed for a few minutes at zero gravity, jumped down from the roof of the ship to put himself between Wells and Murphy. He was about to say something when a scream was heard coming from the drop ship. Everyone ran in, Stiles a little behind as he got up to follow.

Everyone was standing around the opened door of a compartment, pushing others to see what it was about.

"It's a guard!" Someone yelled, and once again Stiles' heart jumped out of his chest. "I think he's dead…"

Stiles had heard enough, he pushed his way forward until he was close enough to see the guard on the ground, blood pouring down a face he knew too well.

"Oh god. Derek!" He screamed, pushing people out of his way. He knelt next to the guard and tried to shake him.

"Derek! Wake up!" Stiles screamed hysterically until someone got his attention by grabbing his hand.

"Hey! Hey, he's fine. Look at me. He's alive." Clarke said; she was on the other side of Derek with one hand on his neck to check his pulse.

Stiles had planned to go with the group to Mount Weather but after finding Derek, he had refused to leave the man's side. Clarke had warned him that he may not wake up but Stiles was certain he would.

And he was right. A few hours later, as night was starting to fall, Derek moaned in pained before opening his eyes slowly.

"Derek!" Stiles said, breathing a relieved sigh.

Derek immediately shot up, his eyes wide opened as he said Stiles' name in surprise. He immediately regretted it and fell back down on the makeshift pillow Stiles had made him with one of the blankets they had found in the crate.

"Slowly big guy; Clarke said you might have a concussion."

"No kidding." Derek replied in a deadpan voice. "We're on Earth?" He finally asked in wonder.

"Yeah…" Stiles whispered with a small smile, still shocked by that realization.

"Is it safe?" Before Stiles could answer, they heard the voice of the hundred shouting 'Whatever the hell we want!' over and over again.

"I don't know…" He finally said, stroking Derek's hair as the man started to doze off.

Note:

Chapter 1, done!

What did you guys think?