Summary: Captain Kirk, the infallible, the unbeatable, he who does not believe in no win scenarios. He's a starship captain, a hero of earth, and perfectly healthy, or so he thought. What happens to Kirk when a mysterious illness starts to claim him. He tries to hide it, but will the crew find out or will they be to late?

Author's Note: This is what happens when you watch the new Star Trek trailer. I couldn't get this out of my head, don't ask how I came up with this from the trailer. Any way, I've written for Star Trek before but never posted it, and I'm more familiar with the original star trek but I tried my best at matching the characters. It was kind of hard considering McCoy has so little screen time. But no slashes at the moment. I don't even know if there will be romance! So I'll disclaim and you can read, ja? See you at the bottom.

DISCLAIMER I DO NOT CLAIM TO OWN STAR TREK I ONLY OWN THE PLOT

Chapter Time!

Stardate: 2260.137

"Captain we need you on the bridge." It was Sulu's voice calling over the comm. Jim sighed and got up. He didn't see why it was required for him to be on the bridge whenever they did some menial task.

He put a command gold shirt on over his skin tight black one and began the relatively short trek to the bridge. He had a headache and he hoped it wasn't going to get worse. Then again with his luck he probably found something in the air system he was allergic to which meant that the engineering crew would have to change the air circulation system to remove that one allergen. He was meaning to ask Bones why he was allergic to so many things anyway. He would stop by sick bay after they were in orbit.

Jim was hoping that he would be able to get to the bridge in peace. Evidently that wasn't to be so. As he was lost in thought admiring the chic inside of his starship he hadn't noticed someone falling into step with him.

"Penny for your thoughts?" It was a female voice, Uhura.

"Heh, I guess so." Kirk replied.

"Why so deep in thought?" While she didn't always approve of the Captain and his galavanting ways she respected him and like all of the alpha bridge crew and Doctor McCoy, she worried about him. Whenever he wasn't being an astro-casanova that is.

"Just bored with the assignments we're getting." Jim sighed. "I mean we saved earth and now we are looking at planets that aren't being threatened by some space pirates or something."

Uhura rolled her eyes. "I'm sure something more exciting will happen soon." She gave him a smile as they stepped into the elevator.

Normally Jim would use this as an excuse to hit on her and flash her the "Kirk smile". He was too tired today to even really bother, no offense to Uhura she was a smoking hot beauty but he wasn't feeling good. Jim had a sudden thought of Bones' Jim-isn't-100%-healthy detector going off and it ended with Jim getting hypoed or threatened until he went to the med bay or both.

The elevator opened and Kirk stepped out and into his Captain mode. He flashed Alpha crew a grin and moved to the Captain's chair. Uhura gave him a strange look not expecting the lack of harmless flirting she usually got from him, she shrugged, maybe the Captain was just in one of those moods.

"Captain." Spock nodded in greeting, moving from the science station and to the side of the captain's chair. It was almost second nature to him now after he and the Captain had gotten over the initial difficulties of having two different personalities and ways of captaining, they ended up working quite well together.

"Spock." Jim greeted easily. Now that he was on the bridge he was supposed to give the order to go into orbit. "Sulu take us into orbit."

"Aye Captain." Sulu really didn't need to be told that but it was all really ceremony.

Jim marveled at how well his crew worked together, the ship always ran smoothly because of this. He hit the call button on his chair for engineering bay. "Scotty how are we doing?"

"Power levels are a holdin'. No signs of trouble." Came the Scotsman's reply.

So now the only thing to do was get a report on the planet and do some exploring. His head was throbbing and since he wasn't one to sit out a mission he was going to head to sick bay. "Run the scans. We'll pick a landing party afterwords. Spock you have the con."

Jim stood up and Spock was surprised at the Captain's restraint from just doing scans as they went along on the ground as usual but actually have information on the planet beforehand. It was a nice change to see him be responsible, but it was also concerning him, even if the Captain didn't think he was showing signs of discomfort he was, so Spock was unnerved for this illogical behavior for the captain, well less logical than the Captain's regular behavior.

The Captain had gotten stopped by a Yeoman to sign some papers and Spock took it as a chance to call the Sick Bay, as first officer he was required to inform the CMO of any oddities in the Captain's behavior incase it was medical.

"Sick Bay." The slight southern twang was unmistakable.

"Doctor McCoy." Spock started and he heard some mumblings of things such as 'what the hell did that idiot do now.' or 'I swear if Jim ate something he's allergic to...' "I would like to inform you of the Captain's behavior."

Spock practically heard the eye roll. "What is it First Officer Spock?" McCoy answered.

"The Captain is acting less reckless than normal." Spock said, completely prepared for the "You think that's a bad thing?" statement but was proven to have misjudged McCoy's CMO mode.

"Something's definitely wrong. I'll check it out later. What exactly did he do that wasn't reckless?" McCoy said, alarm bells were ringing in his head. Of course when it came to Jim he always knew something was wrong, because there are times when McCoy's surprised the kid isn't allergic to his socks.

"Instead of beaming down to the surface with little knowledge on the terrain and learning it as we go he's having us run scans. He looked tired and was showing signs of discomfort." Spock replied. He noted that the Captain was done with the yeoman's paper work and was making his way over to him.

"Spock, one more thing, I need to get something from Sick-bay so if I'm not in my quarters try there." With that Jim walked into the elevator.

"Did you hear that Doctor?" Spock asked.

"I did." McCoy said shortly and ended the transmission. Spock walked over to the command chair and sat down.

McCoy was in his office pacing. Something was off with Jim, he knew he wouldn't be able to run the tri-corder over him without him becoming suspicious. He sat down behind his desk, it was an unspoken rule in the sick-bay that if the Captain came down he was to be sent to Doctor McCoy or McCoy was to be called down. McCoy did have faith in his staff but when it came to Jim there was only one person on this ship and probably the entire federation that knew the entire list of Jim's allergies and it always kept growing, it ranged from common allergies to food to medicines to contact types. So McCoy was the only one allowed to treat him unless for some reason McCoy was unavailable such as he was unconscious or dead.

Moments later there was a knock on the door. "Enter." McCoy called, he was McCoy until he was with Jim, then he was Bones, but that was only because the kid refused to call him anything else. It'd be to weird for McCoy to tell Jim to stop since he was actually, not that he would actually ever admit it, fond of the nickname.

"Hey Bones." Jim greeted.

Bones, since Jim was here, returned the greeting. "Hey, what brings you here kid?"

"Nothing serious." He waved the off surefire concern, Bones was his best friend that old Spock and his other self may have been best friends but this was a different time line and he didn't want to have to choose so they sort of formed a trio, Spock and Bones always arguing and him just laughing.

"Then why are you here?" Bones asked, keeping up his gruff persona so he wouldn't give anything away.

"Just a headache and I can't take anything without your okay so can you give me some light painkillers just to get rid of this headache?" Jim asked.

Bones was surprised, Jim Kirk being bested by a headache. It was a surprise because of the amount of drinking he did back at the academy, and on week nights no less, and wake up just fine. Bones nodded and motioned for Jim to follow him, he was heading to the medicine storage system, while they had advanced throughout the years Advil had yet to be replaced as a painkiller for headaches. It was also the only painkiller Jim could have without having a reaction to.

Jim took the pill and swallowed it chasing it down with a glass of water. "Hey Bones?"

Bones made a grunt for him to continue on since he was putting the bottle back into the storage area.

"Why am I allergic to so many different things?" Jim asked.

Without thinking it through Bones replied with a sarcastic answer "To make my life aboard this ship as difficult as possible."

Jim pouted, he knew his friend wasn't serious but he could be serious right now. "Seriously though, why?"

"I've asked myself that when I was memorizing your allergy list. I'm not sure, you could ask that pointy eared hobgoblin and get a better answer but I think its because of the circumstances of your birth, they weren't exactly normal and I'm sure there was a minute amount of radiation that reached you when you were a baby, not enough to cause harm but it probably altered your genes to make you allergic to everything and give you that unnatural shade of blue for your eyes."

Jim nodded satisfied with that answer. He turned to leave when he was hit with a sudden dizziness.

Bones noticed the others loss of balance and hurried over to him. "You alright?" He asked.

"Yeah, turned to quickly and the headache doesn't help." Jim waved off the other's concern.

Bones was skeptical but he nodded anyway. It did seem to be a momentary thing so Jim was probably right, but the doctor in him wasn't believing it. "Alright, go rest. The crew can't do anything without your okay unless you get taken off of active duty and I'm not doing that for a headache, unless you don't listen to me."

Jim blinked at him. "Yeah, I'll do that."

Jim walked out of sick-bay without another word leaving Bones baffled. He was worried about the captain but couldn't do anything about it until it was effecting his performance drastically which it wasn't. He figured he was just being overprotective of him. The entire crew was though, well more so than just on a Crew to Captain basis. McCoy shuddered as he recalled that day nearly a month ago.

Flashback

It was easy they said. It would be simple they said. There was no chance of any medical emergencies they said. Bones scoffed evidently Starfleet forgot they were dealing with the Enterprise Crew under Captain Kirk. McCoy was told to have an O.R ready and that the landing party would soon be beaming up. McCoy was worried because Jim was on the landing team and the kid had a winning streak of having bad luck.

The was the hum of the transporter beam and six figures, two on one pad, appeared. Spock was carrying the wounded crew member. Bones felt himself panic, because he was Bones now, as he saw that the tunic was command gold and a closer look revealed the young face of Jim Kirk. He was covered in blood, burns, and dirt. Everything was a blur as the med team got to work getting their Captain on the stretcher and to sick-bay. Bones was running a tri-corder for diagnostics. It was looking pretty bleak. Several major burns littered his body in large areas, several broken ribs, four of which were puncturing his lungs. He had several areas of internal bleeding his stomach was a big one, his spleen and appendix as well. There were deep lacerations on his chest that he would have to sew up after he was done fixing up the Captain's insides. There appeared to be no head trauma which was a plus.

Making it to the O.R bones and his staff set to work trying to save their Captain's failing life. Several times Jim's blood pressure dropped dangerously low and it took longer than Bones' liking for it to get back up. He had managed to remove the ribs from Jim's lungs and was working in repairing his stomach, he had to use blood clotting medicine and it was working fine until Jim had an allergic reaction. His head nurse had taken care of that while he finished repairing the stomach. He moved onto the other bleeding organs and fixed them up quickly. After taking care of the internal life threatening wounds he stitched up Jim's chest and lacerations that were all around his body. Finally he took care of the burns. The surgery took about seven hours with all the complications and the extent of the injuries.

He and the staff moved Jim into the recovery area where the Alpha bridge crew was waiting nervously. Bones gave them a tired nod and they visibly relaxed, glad that their Captain was out of immediate danger.

"Now will some one please enlighten me on HOW THE HELL HE GOT LIKE THAT IN THE FIRST PLACE?" Bones shouted causing a few of the crew members to shrink back at the anger, namely Chekov who wasn't familiar with the normally mild mannered doctor.

"It would appear that the planet had a hostile life form." Spock said.

"You don't say." McCoy said.

"It was a type of bear, or something close." Chekov said.

"How'd he get burned?" McCoy asked.

"The pollen was acidic and when he was mauled he was flung into the pollen." Chekov continued.

McCoy nodded, it would be the type of thing that would happen to Jim. Then there was a fast beeping sound. The bio bed was reading that Jim's blood pressure was dropping rapidly. Looking at the diagnostics he saw that Jim was needing a transfusion badly, and he couldn't understand why. He order the nurse to get a blood bag. The one thing about Jim is that he was a universal recipient blood type and it had to be from a human. Before the nurse could return with the blood bag the worse happened, Jim flatlined. While the others were standing there in shock Bones' medical training kicked in as he waited for the defibrillator he was doing chest compressions and he wasn't sure it was working so it was a godsend when he got the defibrillator and charged the paddles and shocked Jim once everyone was clear, Jim's heart kick started and he was fine. The nurse who had gone to get the blood bag had been setting up the transfusion doc while they were working on Jim. Bones silently thanked her for having the insight to continue doing her job.

Finally Jim was stabilized. McCoy wasted no time filling out the medical leave of absence papers and making Spock the temporary Captain. Sometimes the kid was more trouble than he was worth. Bones chortled to himself, but the kid was worth a lot so it evened out.

Bones snapped back into reality. He really could've throttled the kid when he woke up after a week of being in a coma, he asked if he could return to duty. The nerve! But at least Bones knew that Jim was in the clear. So after that the crew had discreetly watched after the Captain more. Uhura would talk to him more and ask how he was doing since she was more of a mother hen than Bones at times. Spock would watch the Captain's back better or take the lead. Chekov and Sulu would make sure he stayed away from a lot of the foods he was allergic to, well to the best of their knowledge at least. Bones, was well Bones. He was used to Jim since they had shared a room at the academy and he was around Jim the most next to Spock so at the slightest tick Bones would be on him. Jim didn't notice or if he did he didn't care.

JIm was walking back to his room a small smile on his face. He knew that the Alpha bridge crew, Bones, and Scotty were watching him more so than usual. He was of course letting them. He knew that he had given them all a scare a month ago and this was his way of making things better. If he didn't want them to watch after him he could always hide his problems since it was easy for him to do that. He did it a lot since when ever he got hurt he would act like it was no big deal until it became one or healed of course it was harder the bigger the injury was.

Jim made it to his room where he fell on top of his bed and he fell asleep. He had a dreamless sleep or if had a dream he didn't remember it. He got up and stretched. Surprised to find that he was already dressed. He looked over to the clock showing the "time" It was still Alpha shift and his comm was going off. He answered it. "Kirk here."
"Scans are finished, Captain." Sulu announced.

"I'll be there in a minute. Kirk out." Kirk pressed the call end button.

He didn't remember ordering the scans, then again Spock could've done it. But they weren't aloud to enter orbit without the active captains orders. So he would've had to given them. He shrugged. He would deal with the missing hours later. He needed to head up to the bridge. Walking out he literally ran into Bones.

"Sorry Bones. Guess I spaced out." Jim said.

Bones dusted himself off for something to do he wasn't really hurt he was just surprised. "Ah. Still have your headache?"

Jim gave him a baffled look. Then realizing that it would look strange and that it might set off Bones with the questions he quickly recovered himself. "Oh yeah! Its gone now, I just needed the medicine and sleep. Guess I was just tired."

Bones gave Jim a strange look. He wasn't so sure that the other knew what he was talking about but he let it slide but he was going to keep a tighter eye on Jim. Since they were about to send a landing party down Bones was thinking about volunteering to go with them if Jim went.

The pair walked in silence. Jim kept trying to remember what happened but it was only causing him a headache. This was bad, he wondered if would happen if he kept getting a headache. This was worrisome to him, though it only happened once so far he couldn't risk it happening again after he gave crucial orders. He promised himself he would use his dad's old leather bound blank book as his journal until he figured this out. Writing the events before he went to sleep whenever that would be.

Arriving at the bridge he flashed everyone a Jim Kirk smile and got straight to business.

"How's the planet look?" Jim asked Spock who had taken his usual spot next to the chair.

"Uninhabited, by humanoids at least. There are several native species of animals." Spock answered.

"The atmosphere?" Kirk asked, hoping that he wasn't asking the same questions again.

"Appears to be a breathable composition." Spock answered.

"Anything else of importance?" Kirk asked.

"Captain if I may give you a suggestion?" Spock asked tilting his head to the side. Kirk gave a nod. "It may be more beneficial to your health if you stay up here, the plants down there are full of pollen and with your allergy it could prove hazardous if you went down there."

Kirk chuckled slightly. "So I'll stay away from the plants, and I'll bring Bones on the beam down team, that way he can save me."

"Only if you say please." Bones said. Normally a CMO wouldn't talk to his Captain this way but it was Jim, he refused to let the kid's ego get any bigger, it was his civil duty.

"Please?" He batted his eyes for effect. Then managed to keep a straight face for about five seconds before he let out a laugh.

Bones rolled his eyes. "Fine I'll go."

Kirk nodded. "So this is the beam down team... Bones, Spock, Sulu, and I."

The owners of the names nodded and got up and started to walk towards the elevator. Kirk told the transporter room to be ready. Then he joined the others in the elevator they headed towards the transporter room. Once there, after grumbling from the good doctor about how he was going to end up talking out of his ass because thats were his mouth will end up they were on there way to the planet's surface.

Here we are, at this sad departure, possibly. Let me know what you think by leaving a review below. Or you can even give predictions. Anyway I hope you enjoyed and sorry if you didn't like it. This is un beta'd so... sorry for any mistakes. I read it myself but you know how that goes. Later! ~IF