Forever (Part 1)

Disclaimer: Supergirl characters and concepts belong to Greg Berlanti & Co. Highlander characters and concepts belong to Panzer-Davis Productions. All other recognizable characters and concepts belong to DC Comics. The plot and all original characters are mine.

A/N: I'd hoped to get this out sooner, but I promise it's worth the wait! For those unfamiliar with Highlander, everything you need to know to understand this story will be explained as it becomes relevant (and anyone who has questions can PM me).

Plot-wise, this story is more or less canon up until 2x04, with some alterations. The biggest one is that, for purposes of this story, Alex's sexuality has never been in question. She may not be out to everyone in her life, but I figured that with all of the other changes set to happen, having a coming out story on top of that would be overkill. Hopefully I still do the Sanvers relationship justice.

There will be a few cameos from recognizable Highlander characters later on, but the crossover is mostly based on the concept. I also only consider the Highlander Series canon up until "The Modern Prometheus" (fans of the series will understand why), so I plan to hold to that (plus concepts from later episodes that fit my narrative), and any changes from 'official' canon can be explained by them being on Earth-38 (assuming the series took place on Earth-1).

I plan to update on Tuesdays and Fridays. Enjoy!

Prologue

"Alex, look out!"

At Supergirl's cry, Agent Danvers knocked out the Gordanian she'd been fighting – the DEO had responded to an alert about a small scouting party that had landed outside the city – just in time to see one of the Gordanians' Branx enforcers charging in her direction. She fired off a few shots, but they had little effect on the thick-skinned, four-armed alien. Next thing Alex knew, she was airborne and hurtling towards the side of the canyon they'd cornered the invaders in. She hit the stone with a sickening crack, and everything went dark….

"Alex! Alex, wake up! Rao, please don't be dead…"

With a loud gasp, Alex surged back to consciousness to see her extremely worried sister kneeling next to her. Before she could even begin to get her bearings, Kara pulled her into a too-tight hug, only stopping when the elder Danvers grunted in pain. "Okay, okay," she muttered, nudging her sister back a bit to give herself some breathing room. "I'm fine, see?" Alex wasn't quite sure how she'd managed to come out of that as unscathed as she appeared, but was too thankful for the apparent miracle to really question it.

Tears in her eyes, Kara threw her arms around Alex once more, sobbing into her big sister's shirt. "Rao, I thought you were dead. I couldn't hear your heartbeat for like 10 whole minutes."

"Maybe your hearing is on the fritz," Alex shrugged. Kara continued to cry, and she let it go on for a few more moments before gently pushing her baby sister back so she could look her in the eyes. "Look at me, Kara," she soothed, cupping the younger girl's cheeks. "I'm fine. It's gonna take a hell of a lot more than some alien thugs to put me down."

"I know what I heard, Lexie. Or didn't hear. Your heart stopped."

Shaking her head, the elder Danvers took Kara's hand and placed it on her chest. "Feel that?" Kara nodded. "It's still beating. If it had really stopped, I'd be on my way to the morgue instead of sitting here talking to you. Okay?" Another nod, though the younger Danvers didn't look completely convinced.

"Deputy Director!" someone called out. It took Alex a moment to remember her recent promotion.

"Over here!" She climbed back to her feet, then helped Kara up, wiping her sister's eyes with her thumb so that no one would see Supergirl crying. Luckily, the younger Danvers was able to compose herself by the time Vasquez reached their position. "What's up?"

"Ma'am, Director J'onzz is on the line. He wants an update." Vasquez held out an earpiece, at which point Alex realized that hers must have fallen out when she was thrown. She took it, but didn't put it in just yet.

"What's our status?"

"Prisoners are secured, and we have their ship as well. Agent Bennett and her team will be taking them to containment, and the rest of us are ready to head back to base when you are." After Myriad, their branch of the DEO moved its main operations to the facility located in downtown National City so they could keep a closer eye on things and be where Supergirl needed their help the most, and the desert base was now primarily used for holding their most dangerous alien prisoners.

Alex smiled. "Great work. You guys go on ahead. I'll update J'onn, and then Supergirl and I will catch up."

"Understood," Vasquez nodded, then frowned. "Are you sure you're alright, Ma'am? You took a pretty nasty blow from that Branx."

"I'm fine. Tell Bennett to get the would-be invaders into containment before they get any bright ideas, okay?"

"As you wish, Ma'am." Vasquez turned and left, and Alex slipped the new earpiece in, tapping it to pick up the line.

"J'onn?"

"Are you alright, Alex? I've been getting reports that you were knocked unconscious…maybe even killed."

Alex sighed. "Reports of my demise have been greatly exaggerated. I'm fine, in one piece, and ready to come back to base. Vasquez and the others are already on their way, and Bennett's team is taking the aliens and their ship to containment."

"You could have given me that report on your way back with Agent Vasquez."

"I didn't want to deal with everyone hounding me about whether or not I'm really okay."

"Well, you're going to have to deal with at least one more. Get back to base and report to Dr. Hamilton."

"I really don't see the need for that, J'onn. Like I said, I'm fine."

"That's what you always say. Either let the doctor look you over, or be suspended from duty for the next week."

Alex's jaw dropped. "You can't be serious! You'd bench your Deputy Director for a week just because I don't want to be poked and prodded for no reason?"

"I still have Lucy. Frankly, I'd rather spend a week one Deputy Director short than risk you collapsing because you're too stubborn to get checked out for a potentially serious injury. Are you getting this, Kara?"

The Kryptonian nodded, giving her sister a rather pointed look. "Yes, Sir. I'll make sure she goes straight to the med bay when we get back to base."

"Traitor," Alex muttered.

"You're not going to win this one, Alex. Report to the med bay, and I'll see both of you later for your debrief." The line went dead, and the elder Danvers glared at her sister, who glared right back.

"He's right," Kara insisted. "You say you're fine, but for all we know that's just adrenaline talking. What if you have a serious head injury? Or brain damage?"

Alex sighed. "You're not going to let this go, are you?"

"Nope. You're lucky I didn't tell J'onn about your heart stopping."

"I still say you imagined that one."

"Maybe," Kara shrugged. "But I'd feel a hell of a lot better if we found out for sure." She shook her head. "I thought I'd lost you today, Lexie. If you won't do this for yourself, then do it for me…for my peace of mind. Please?" She gave Alex a pleading look that the elder Danvers simply couldn't say no to.

"Fine…for you. Care to provide air service?"

"Thought you'd never ask," the Kryptonian grinned, scooping her sister up and taking off before she could even think about changing her mind.

TBC (See you Tuesday!)