"What did you do?!" Alex Danvers, agent extraordinaire and overall badass had Maxwell Lord slammed up against the glass of his holding cell.

"Temper, temper," Maxwell still managed to sound smug, squished up against the barrier. "I thought you government types were all about law and order-urk!"

Alex had taken the opportunity to jab a quick one-two punch into his side in her sheer rage and got in one more knee to the groin before she was tackled and hauled off by other DEO operatives.

"Tell me how to reverse it!" Alex roared, struggling to get a hold of Maxwell again, ready to break each and every finger on his hand to get the information she needed.

"It…" Maxwell wheezed, cringing away from Alex's grasping hands. "...was an… accident… oh god it hurts…"

The sliding door that lead to the glass holding cell opened, admitting one, Hank Henshaw.

"Alex." His voice was urgent, serious. "It's Supergirl."

Without another word, Alex had broken free of the hold on her and was racing through the hallways back in the direction of the sun room, her heart racing, the feeling of dread like a stone, weighing down her stomach.

'No, no, no, no, no…' The word was just a litany, a prayer in her head. That whatever had happened to her sister wasn't fatal, that she was okay, that she was sitting under the sun lamps, relaxing and recuperating. That she would smile at her and everything would be okay and if only Alex had been there, if only they hadn't sent Kara out by herself-

"Doctor Wu," Alex slowed to a stop, heart in her throat. The doctor was just leaving the sun room and there seemed to be… almost all the medical staff inside what Alex had always thought of as Kara's room in the DEO. "What's going on?"

"Alex." The doctor held up her hands slowly in a placating gesture. "Alex, you just have to calm down first-"

"Move." Alex gritted out through her teeth. "I'm only going to ask once. Please."

Dr. Wu nodded slowly and opened up the door. "It'll be okay, Alex…"

Alex ignored everything else the doctor was saying, couldn't hear her actually, her heart sounded like it was beating so loud that she really couldn't hear anything but the dull roaring of her own blood.

"Oh, Agent Danvers!" One of the nurses saw her and smiled. "I know this is just horrible but oh my god, she's so cute!"

"Cute?" Alex blinked, her vision coming into focus again and finally hearing the barking of a… dog?

"What…" A blonde ball of fluff squirmed out from the crowd of cooing doctors and aw-ing nurses to crash right into Alex's feet. Whimpering, the puppy looked up, licking it's chops. Recognizing Alex, the tiny tail whipped back and forth chaotically, shaking it's entire body.

"Bark! Bark bark bark bark!" The puppy was falling all over itself in excitement.

"What… what's this?" Alex looked up at the medical staff angrily. "Are you guys playing with a puppy instead of helping Supergirl?"

"Dr. Danvers," A nurse started meekly. "That IS Supergirl. After we restrained her on the table, she started transforming. That's… that's Supergirl."

"Ruff!" The golden retriever puppy was wagging it's tail so hard it was difficult for it to stay upright. The puppy looked back at her own tail, furious at it for causing her loss of equilibrium and tried to catch the waving tail, unsuccessfully, in her mouth. That caused the medical staff to coo some more.

"That's not my sister." Alex was in shock. So was the puppy at hearing those words, her eyes looking up at Alex pitifully. The tail finally stopped wagging, tucking under her tummy and the whimpers started.

"That is not…" Alex shook her head, looking around at the medical professionals helplessly. "This isn't possible! Back me up here!"

The whimpering grew louder until the puppy had resorted to full-out howls of sadness.

"You're making her sad!"

"Apologize!"

"Yeah!"

"I'm not… this isn't Supergirl!" Alex hissed. Now the puppy was barking at her furiously between her whimpers.

"If you're Supergirl," Alex crossed her arms. "Do something. Prove it."

The puppy sat down on it's butt and looked up at Alex with a little frown. Then, she was off like a shot.

"No super speed?" Alex followed after the puppy, taking long steps. The medical staff followed along behind Alex.

"Seems that in puppy form, Supergirl's lost her superpowers."

"Right…" The puppy was heading straight to Alex's office. She had ducked under Alex's desk and was pawing at a banker's box that had a bunch of junk on it. The puppy knocked down the junk and continued pawing at the box.

"What's that, girl?" A young doctor cooed. "You want us to get that out for you?"

"No, don't-!"

As soon as the box was pulled out, the puppy had jumped up to knock the lid off and was pulling out the contents of the box: bags of candy and chips-Alex's snack stash.

"Bark bark bark!" The puppy was wagging her tail again, looking up at Alex with impossibly blue eyes.

"So maybe you are Supergirl." Alex shook her head in shock. Only her sister knew where she hid her stash. As the blonde puppy ran around in circles, the doctors and nurses who had followed the puppy in were dropping to their knees, trying to pet the fluffy canine.

"How long is this going to last?"

"Our guess?" One of the doctors, looking very professional sprawled out on the floor, "Maybe, forty-eight hours. Seventy-two hours at the most."

"Alright. Then all we have to do-Hey!" Alex pointed at the puppy who was teething on a box of chocolate chip cookies. "Those are mine!"

The golden retriever pup looked up at Alex with wide innocent eyes. Then in a mad scramble with the box still in her mouth, she ran out the door.