Disclaimer: I don't own Supergirl or the characters. This is written purely for fun.

A/N: This is going to be (really) angsty, but it will work its way towards a happy ending.

Synopsis: Set after the end of season 3, a DEO mission goes horribly wrong having major consequences for everyone.

"Danvers' sisters, ten. Bad guys, nil." Supergirl announced as she tied up their unconscious prisoner and placed him with the other nine.

"Don't get cocky, there could be more of them." Alex pointed out as she scanned the area.

"There aren't. At least close by...or if there are, their hearts aren't beating." Kara pointed out.

"No offence to your hearing ability, but how many times did that fail when we were growing up and I asked you to listen out for mom?"

"It's not my fault I got distracted." Kara argued.

"Kind of is when that was your one job and it happened every time. It was like you wanted me to get caught."

"Maybe you shouldn't have been breaking the rules." Kara countered.

"Wait, did you deliberately not tell me mom was coming back?" Alex asked.

"Only when I was worried about you." Kara said.

"We will talk about this after the mission." Alex said pulling out her radio.

"Team Alpha, the area is clear. You can approach." Alex said over the radio.

"We'll be with you in five minutes, ma'am." Agent Hawkins confirmed.

"Anything else you want to confess to?" Alex asked looking at Kara.

"No." Kara replied before trying to change the subject and asking. "Should you even be out on these missions?"

"What do you mean?" Alex asked.

"Well Director Danvers, shouldn't you be babysitting a desk or something?"

"I do not babysit desks." Alex said.

"You have been recently. I've missed being out on missions with you."

"Well unless you are going to start doing my paperwork, I need to spend less time in the field." Alex said. "But I missed being out here with you too." She added.

"It's way more fun working with you rather than Hawkins." Kara said.

"What's wrong with Hawkins?" Alex asked.

"You."

"What do you mean me?" Alex asked confused.

"You put the fear of god into him when you gave the talk about protecting me. Now, every mission, his heart sounds like it is about to jump from his chest, it can't be healthy. Plus he is always so stressed he is not much fun to be around." Kara explained.

"He, and the others, need to know how important their jobs are." Alex pointed out.

"You do remember I am practically invincible?" Kara asked.

"Practically invincible is not he same as actually invincible." Alex said. "Besides, do you know how much paperwork is involved when an Agent gets hurt? J'onn must have had powers he didn't tell us about."

"It can't be that bad." Kara said as unsympathetically. "But you did pick a really creepy mission to come on. I didn't think there were any abandoned towns like this in America. It's like every one just got up and left."

"They did." Alex pointed out.

"It feels like zombies are going to start walking down the streets." Kara went on.

"Only Cadmus agents, unless you are getting your excuses in early on why your hearing fails."

"Zombies groan, I'd hear that." Kara assured her. But then Alex suddenly gasped and fell to her knees.

"Alex?" Kara cried as she caught her sister and saw the bleeding stomach. As she held Alex though she felt the tell tale signs of Kryptonite.

"Sniper." Alex guessed as he pressed her hand down on the wound.

Ignoring the Kryptonite Kara looked round wondering where the shots were coming from only to see a red mark on Alex's forehead.

"No!" Kara cried moving her body to shield Alex, moments before something ripped into her shoulder.

"Kara?" Alex asked as her sister fell on top of her.

"Kryptonite bullets." Kara confessed. "Have to go." She said pulling Alex up and despite her weakened state helping Alex stumble towards shelter. Before they reached the wall though another bullet ripped through Kara's leg causing them both to go down.

"Go without me." Alex said hating feeling so weak as her sister was hurting.

"Not without you." Kara said struggling to her feet before helping Alex to a stairwell.

"Team Alpha, we are taking fire. They have Kryptonite. We need help now." Alex wheezed into the radio.

"We'll be there in two minutes." Hawkins confirmed.

"You have to get away from me." Alex said clutching her side, trying to stop the blood loss.

"No point. I've got two green bullets in me." Kara reminded her. "Besides, I'm not leaving without you." Kara said through gritted teeth.

"I can take them out." Alex said moving her hand causing blood to pour from her wound.

"Not without bleeding to death." Kara said, trying to fight the nausea. "I can wait until backup arrives."

"You suck at lying." Alex said pressing down on her torso.

"And you pick really bad days to leave the office." Kara countered as she looked round seeing only four choices. One, jumping off a ledge, two climbing up the stairs, three remaining where they were or four going back the way they came. "Looks like we are safe here." Kara said more out of hope than anything else, moments before an explosion sounded from somewhere above them. "What was that?"

"Don't know, but it didn't sound good." Alex said before something caught her eye. Hurtling towards them, down the stairwell they were sheltering under, was debris surrounded in green dust. Guessing the green was Kryptonite Alex knew that if they were hit neither of them would survive.

"I love you." Alex said before using her final strength to push Kara off the ledge and away from danger. Moments later she was crushed under the weight of the falling rocks.

-TBC...

A/N: Thanks, for reading and reviewing.