When Kara arrived at the lobby, she found Kryptonian soldiers attacking her employees.

"I hope I've learned enough watching Superman." Kara muttered to herself before she flew straight into the fray and into the nearest soldier.

"We were wondering if you'd show up. Daughter of Alura." one of the soldiers said.

"You know who I am?" Supergirl asked.

"We'd know that glyph on your chest anywhere and we've been wanting to get our revenge against your mother for years and now we finally have a chance. Through you." the soldier said as he blasted her with his heat vision, which she countered with her own, since Clark had trained her for this situation, since he'd always hoped that she'd follow in his footsteps and wanted her to be prepared for it, which included teaching her how to use her powers in combat, just in case, though she never thought that she'd actually use it until now.

"You have some training." the soldier said.

"Yep. Now tell me who sent you, since there's no way your commander is here." Kara said.

"None of your concern." the soldier said.

"Get the hell out of my building." Kara said as she punched him back.

"You may have some training, but you're outnumbered." the soldier said as his fellow troops converged on her, right as Krypto came flying in, but he was even less prepared for combat than she was, so while Kara honestly doubted that his assistance would make any difference, she was grateful for the company as she resumed trying to fight off these attackers until suddenly, one of the soldiers was taken down by some kind of green explosion.

"What the?" Kara asked as she saw humans in tactical gear rolling up and to her surprise, her sister was leading the charge.

"Retreat." one of the soldiers said, realizing that somehow, these humans had weapons that could actually hurt them, though they didn't know how, but until they discovered how, they needed to retreat and the soldiers did exactly that.

"Alright, secure the perimeter." Alex said to some of the agents, who nodded and walked off.

"Alex?" Kara asked, getting her sister's attention.

"Are you okay?" Alex asked as she walked up to her.

"I'm fine, but what the hell is going on here?" Kara demanded.

"I know you have a lot of questions and I promise I will answer them, but now, I'm going to ask you the same question. What the hell are you doing?" Alex asked.

"What I was sent here to do. And I'm not arguing with you over this when you are literally rolling tactical weaponry into my building." Kara said.

"I know and I promise I will explain everything. But you're gonna be even madder at me in a minute for this." Alex said as she put on a gas mask and dropped a device that emitted green gas that actually managed to knock both her and Krypto out.

"I'm sorry Kara. Hopefully this will all make sense later. And I will let you turn me into a chew toy Krypto when this is over, since I know I deserve it." Alex said to her sister, knowing that would be pissed when she woke up.

Kara groaned as she came too as she started to take in her surroundings and saw that she was in some kind of lab.

"I see you're awake." a familiar voice said and Kara turned to see an old acquaintance of hers, Hank Henshaw, since her company did business with his division of the FBI, or rather it used to, since she was definitely going to be canceling that contract after she got out of wherever the hell she was.

"I am canceling your contract with my company and making sure no other company will take it in my place." Kara groaned.

"What if I offered to pay double the usual rate?" Hank asked, since while Kara's reaction wasn't unexpected, he could afford to lose her business.

"Make it triple and I'll consider it." Kara said and Hank chuckled as Krypto came to and started barking at him.

"I see he's angry." Hank said.

"He's not the only one. What the hell is going on here?" Kara demanded.

"Welcome to the DEO Ms. Danvers. The Department of Extranormal Operations, created for the purpose of protecting this planet from alien threats." Hank said as he helped her get to her feet.

"I know, my cousin warned me about you guys in the event I ever decided to reveal myself to the world." Kara said.

"I'm assuming he's also the one who taught you how to fight?" Hank asked her and Kara nodded.

"Why am I here?" Kara asked.

"Because you exposed yourself to the world, which makes you a potential threat." Hank said.

"I'm no more of a threat than my cousin is. And besides, I'm betting that the world knows I exist now, so can't put that genie back in the bottle." Kara said and Hank sighed.

"I know." Hank said, right as Alex walked in.

"Kara, I know you're mad at me." Alex said.

"You're lucky that I'm not sicking Krypto on you right now. And you're officially off the Christmas present list, you'll be lucky to get socks from me." Kara said and Alex actually groaned, since Kara always gave very nice and very expensive presents, though that had always made her look bad in Eliza's eyes, since Alex could never afford gifts as nice as the ones Kara gave.

"And I deserve it. I'm sorry about all this Kara, I wanted to tell you." Alex said.

"What, that you've been hunting people like me? Are you going to toss me in a cell?" Kara asked, since Clark had told her about what the DEO did.

"No, we protect the world from alien threats, meaning that we only hunt aliens when they step out of line and become a danger to the world. But most of the time, we let them live their lives." Alex said.

"And we don't want to make an enemy of Superman by locking you up here. Not to mention the CEO of one of the largest tech companies on the planet going missing would be noticed and bring all kinds of attention our way. However, I would like you to train here to learn how to fight before you start taking on the same kind of threats your cousin does, since an inexperienced hero is one who puts a lot of people at risk." Hank said and Kara nodded.

"Deal, but right now, I need to get back to my office and start doing damage control and figuring out what those thugs wanted in my facility." Kara said.

"Keep us informed on that." Hank asked and Kara nodded.

"Will do. But keep her away from me for the foreseeable future." Kara said, looking at Alex with distrust in her eyes before she and Krypto flew off.

"I knew she'd be mad, but not this mad." Alex said to her boss.

"Just give her time to calm down. In the meantime, let's see if we can figure out what these thugs were after." Hank said and Alex nodded.