A/N: Just had to get a random plot bunny written, in the form of a multichapter. In case you were wondering, "Area 51" is still going; I just had some bad writers block and my beta reader might've gone on a long hiatus. Slight AU where James never leaves, just 'cause I can. Also, if there's anything medically inaccurate, well, Kara's another species, so it's kinda justified? I mean it's partly crackfic anyways lol.

I would put a disclaimer saying I don't own DC/CW/etc. here, but, really, there's no need to point out the obvious.

Kara and her team came face-to-face with their opponent, a strange species they had never seen before.

"It looks like an unknown species. Nobody, not even in the 30th century, knows what this is," Brainy explained.

"So, how do suggest we take it down, then?" Kara asked.

"Let's just go with our normal plan of action, and avoid anything that looks suspicious,"

"Got it." Kara used her speed to put the cuffs on it. A moment too late, she realized that she just brushed against a sharp point on its skin.

"Are you okay?" she heard Alex ask from the comms.

Kara noticed a vague, burning pain where she touched it. She felt her chest tighten and her vision blur.

"I...I don't know..." What's going on? Why is it so hot in here? Kara started to lose her balance. The last thing she heard before she went unconscious was some voices shouting her name.

Some time later

"Guys, what happened?" Alex asked the others.

"I don't know. After she captured the alien, she just... passed out," James told her.

"Well, whatever it is, let's just hope she wakes up soon," Nia commented.

Where am I? Kara thought as she sat up, feeling strangely weak. As she came to her senses, she saw that she was on a bed, in the med bay of the DEO. "Did you say something?" she asked, vaguely hearing their conversation. She tried to stand up. Instead, she felt herself suddenly get lifted several feet in the air. Okay, that doesn't seem right, she thought, trying to lower herself. Instead, she fell suddenly, almost crashing into the bed.

"Kara, you okay there?" Alex quickly turned around.

"Yeah, I-I'm fine," she replied, dusting herself off and walking to the main room. "That was weird. Did you find out what happened?"

"The tests show some sort of foreign object in your system. Maybe whatever that is could be messing with your flight, and who knows what else. Also, your temperature somehow went up to 102 degrees, which doesn't sound healthy," Alex explained. Just then, an alarm sounded in the distance, just close enough for Kara to hear it.

"Really? A bank robbery now? You know what, I'll take care of it,"

"You should stay here for this one," Alex advised. "We don't know how badly your powers are affected, and besides, the others can handle this,"

"I'm not letting a random power fluke stop me from being Supergirl, the city needs me,"

"But-" Alex was cut off by the sound of Kara taking off. Is the fever making her delirious or something?*

Kara took off in the direction of the bank. So far, so good, she said to herself. Suddenly, she started losing control of her flight. Nope, spoke too soon... she almost crash-landed at her destination.

"Guys, you should-" Kara was cut off by a sudden wave of dizziness. She tried to steady herself on the wall. "-know not to do this anymore," What was that?

"We're not here to talk, Supergirl. We're in this for the cash," one of them said. She held up a high-tech looking weapon. "Now get out of the way."

"Can't let you do that either,"

She fired it. Kara countered the blast with her heat vision. The entire group was thrown into the opposite wall. Okay, now that that's done, why isn't it turning off?

Kara tried to stop the flow of light from her eyes. Another power gone haywire? Great. She put a hand over them, hearing people run from the scene. "Sorry! I don't know what's happening!" she called. After what seemed like forever, it stopped.

She opened her eyes to see several burnt marks on the wall and ceiling. Well, Alex won't be too happy about this.

"Seriously, Kara, what were you thinking?"

"Hey, I didn't know that would happen either!" Kara replied defensively. She knew what Alex meant.

"Well, whatever that was, you're in no condition to do this stuff. We have to find out how to get yourself back to normal,"

"Good news, Director Danvers. I was able to isolate some of that...substance from the scene. I found out what it was," Brainy walked in. "However, what was in it is even more unusual,"

"What is it?" Alex asked.

"It appears to be an alien virus. It lives off whatever energy it can find within the host. In this case, it seems to be manipulating the solar radiation from Kara. Maybe that's why her powers have been acting strangely," he explained.

"So, we've found the cause. Is there a cure for it?"

He thought for a moment. "I'm afraid not. We'll just have to let it run its course, which I'd estimate to be...about a week. On a more positive note, it is neither deadly nor contagious,"

"Great. Who knows what else could happen during that time?" Alex heard a crashing noise behind her.

"Uh, guys? I might've accidentally broken the TV,"

Alex turned around to see one of the panels, or what was left of it, face-down on the floor. "How did that happen?"

"No idea," Kara shrugged. "I was just leaning on the wall, and..." Seriously, why does this keep happening?

Alex facepalmed. "I'll clean it up," This was going to be a long week.

A/N: That's all for chapter one! Any suggestions for other powers and how they might be affected? Feel free to leave a review about it! Keep in mind that this isn't 100% crackfic insanity, so there will be a little side plot to it.

Footnotes:

*Yes, it is. Just in case you were wondering. XD It's making her believe she isn't actually sick (It will be an on-off sort of thing btw), which is going to cause some problems in later chapters... (hint, hint)