"Here's the facts." Kara said, reading from the notepad in her hands. "We know that Maggie's equipment was tampered with on Thursday. We also know that the list of people that are aware of the condition are pretty much all at the police station. So that narrows it down."

Maggie sighed, rubbing the back of her head. She was all too aware of the way Alex's leg was pressed up against her on Kara's sofa, and the whole situation was making her head hurt.

She knew that Alex felt her distress, but apparently the agent knew better than to interrupt their meeting with her concern for her girlfriend. A fact Maggie was silently thankful for. She cleared her throat, and nodded. "Yeah. So, the only cops in the precinct who know about it are Cooper and the four other detectives in the science division."

"And who are they?" Kara asked.

Maggie sighed. "There's Jack McConnell, we work together a lot. He's a good guy. Grumpy, but does the right thing. Then there's Emilio Rossi, early sixties, he's going to retire soon. Eric Shaw, he's the newbie. Fresh out the uniform. And then there's Taylor Lewis. We went to the academy together, she's a good friend of mine."

"She?"

It was the first thing Alex had said throughout their meeting, and immediately the tension in the room became tangible. Kara opened her mouth to wave away the awkwardness, but Maggie turned to Alex with a nod. "Yeah. She. Something wrong with that?"

"I mean… You never told me there was another woman in the science division." Alex frowned. Maggie shrugged slowly. "I guess I didn't really see it as a huge shock, since – you know – I'm a woman too."

"Okay, well…" Kara finally jumped in. "You two can gossip all about your BFF's after this, alright? So those five names, McConnell, Rossi, Shaw, Lewis and Cooper."

"Pretty much, yeah." Maggie nodded. "Except for Lewis, she had a day off on Thursday. I mean, if it even was one of those other three... Honestly, Kara, I trust those people for everything I have."

"And I respect that. But I don't."

Alex shot up. "Guys, I have an idea." She turned to Maggie. "But it's… unorthodox."

"Well…" The detective sighed. "What else is new, anyway."

"Your boss needs to be in on it. And… Well, if it doesn't work, then CADMUS is one step ahead of us."

Kara and Alex shared a look that Maggie couldn't decipher, but she had a pretty good idea of what was going through their minds. She sighed, and looked at the sisters with a heavy feeling in her chest.

"I'll do it. Whatever it takes."

Maggie walked into the police precinct, trying to ignore the nausea that welled up at the thought of what was about to happen.

She smiled politely at the woman behind the reception desk, and got into the elevator. With a sigh of relief, the elevator doors closed, and she was alone.

"Maggie, can you hear me?"

"Loud and clear, Winn."

"Good." Winn's voice came back from her earpiece. "Just focus, and try to give me an answer as quickly as possible. We have two chances."

"Copy. I'm here, is the button cam alright?"

"All coms are up. Good luck." He said. Maggie took a deep breath, and stepped out of the elevator, and into the science division bullpen.

"Alright, Sawyer's here, let's get this briefing over with." Cooper announced to the other four detectives, who all made their way to the meeting room, plopping down onto the chairs.

Maggie took a good look around. It was early morning, and everyone was carrying a big cup of coffee. She herself was the closest thing the division had to a morning person, and even that was overstating it.

She was awake, only because she'd been up since five to get all the wires running underneath her clothes connected to a van outside the precinct, where Winn was masterminding the entire operation.

"So." Cooper broke the silence. "Before we start, I'd like to make an announcement."

Maggie's stomach jumped. Here we go.

"Now, you all know about Sawyer's diabetes." Maggie felt four pairs of eyes land on her. She gave a small, weak smile, trying to act the part.

"It has come to my attention that last Thursday, while she was here at work, somebody managed to mess with her equipment. And I don't want to start pointing fingers, but every person that knows about it is present in this room. So if anybody wants to start talking, or explain how and why, I'm listening."

The silence after his speech was deafening. Maggie looked at the four of them, trying to single somebody out. Anybody who was acting suspicious.

She saw McConnell crossing his arms and frowning, but it looked like surprise, more than a confession of guilt. Rossi looked too into his cup of coffee to probably even care about what Cooper just said. Shaw looked nervous, and it set off some alarms in Maggie's head. But she got distracted by the look Taylor was giving her. It was a silent question. A worried glance, why didn't you tell me?

Maggie sighed, and looked at her boss, clearing the air. "I'm sorry, lieutenant, but I don't think anybody here is responsible for this."

"Sawyer, you know as well as I do that nobody else knows about it." Cooper shot back. "None of you are leaving until we sort this out. I'm not letting Sawyer walk out of this place by herself unprotected if we don't know who is targeting her!"

"Sir." Maggie hissed through her teeth, trying to sound convincingly angry. "All due respect, they are my friends. None of them are capable of doing something like this."

Cooper sighed. Maggie made a mental note to thank him later for the convincing act he was pulling.

"Okay, fine. McConnell, Rossi, you're patrolling today. Lewis, I need you on research about that alien drug bust from two days ago. Shaw, I need statements from those Kalvars you arrested. Sawyer, go home. You're still not allowed on duty."

The detectives scattered. As soon as Shaw closed the door behind him, Maggie released a breath she didn't know she was holding.

Cooper cleared his throat. "I'll give you some time. Shout if you need anything."

"Thanks, boss."

When she was alone, she pressed against her earpiece. "Winn?"

"I caught the most of it. What are you thinking?"

Maggie thought about it. She had Alex and Supergirl ready to shadow any of the four detectives. She had to follow her gut. "Winn? Tell Supergirl to go after McConnell and Rossi. Alex needs to take Shaw, he's headed for the prison."

"So, no Cooper or Lewis?" Winn asked.

"Roger."

"Okay. I'll send them off. Good job. Get to the van and I'll drive you home."

Maggie took out the earpiece, and stuffed it underneath her shirt, before walking back into the bullpen.

Before she could make her way over to the elevator, she heard her name being called. She turned on her heels and saw that Lewis was leaning on her desk, and looking at her.

"Hey, Taylor."

"Maggie, are you okay?" Lewis looked sincere, but there was a different emotion there that Maggie couldn't quite place.

"Yeah, I'm fine. It was just…" She sighed. "…Scary. To think about how easy it was for somebody to screw with me like that."

"I mean, I can't even imagine." Lewis frowned. "But you're okay now, right?!"

"They got my rates back up after I crashed. Was unconscious for some time. They said I would've slipped into a coma if I kept it up."

Lewis seemed emotional, and wrapped her arms around the other detective. "I'm so sorry."

"It's alright." Maggie shrugged when they pulled back. "Not much we can do about it now but find out who did it."

"About that…" Lewis leaned forward and looked around to check if anybody could hear them. "Thursday night, when you left for your… date or whatever it was, I heard Cooper talking in his office."

Maggie frowned, but waited for her to continue.

"It was rough. It sounded like he was arguing with someone on the phone. I didn't want to eavesdrop, but I was passing by his office to talk to him about something else when I heard. He said something about blood… And then something with a 'cat'?"

"Cat…" Maggie repeated, before her eyes went wide. "CADMUS? Did he say CADMUS?!"

"I think so. Yeah." Lewis nodded.

Maggie scrambled to reach for her earpiece tucked underneath her shirt. But before she could do that, she saw Cooper's office door open.

Lewis seemed to sense what was coming, and she pulled Maggie by the jacket into the stairwell. Maggie sprinted down the stairs until she felt she was out of reach from her boss. God, how could she have been so stupid? It was Rick Cooper all along, and she'd trusted him with everything.

She finally reached for her earpiece. "Winn? Winn, you need to tell Supergirl to come back to the police station! It's Cooper. It's my boss, he's the mole!"

"We need to get you out of here." Lewis said, pulling Maggie into the rear parking lot. "I'll drive you. Get to my car and wait."

"Taylor, no, I need to-…"

Before she could continue, she saw Lewis grabbing her sidearm, and running back into the building. She sighed, weighing her options. She could do as Lewis said. After all, she was the target.

But then again… She couldn't. Cooper had to have an explanation on why he'd betray her, because the thought of him working for CADMUS was simply ludicrous. And if Lewis would get to him first, she wouldn't be so kind to ask questions first. That much she knew about the other detective.

So she decided to pull her own gun, and walked back towards the back entrance of the building.

Before she could pull the door open, she felt a sharp pinch in her neck, like she'd just been stabbed with a needle. Immediately, whatever happened took effect, because her knees collapsed, and she fell forward on the ground, unable to move a limb.

She could only see the vague concrete underneath her, and hear footsteps surrounding her. Then, a familiar voice she couldn't place, because everything turned foggy and distorted.

"Checkmate."

After that, it all went black.

Alex had rarely felt like this before in her life. She couldn't breathe.

Nanoseconds after Winn had yelled in her earpiece to stop tailing Shaw and get back to the police station as soon as possible, she'd sprinted back.

The possibility of something happening to Maggie because her own plan had failed made her head spin. She had to know her girlfriend was okay.

"I have Cooper restrained, I'm flying him to the DEO to lock him up!" She heard Kara yell into her earpiece.

"Where's Maggie?" She asked back, pressing her index finger against her earpiece to switch on her microphone.

"She wasn't there! I didn't see her!"

Alex pulled her gun, and decided to round the corner of the precinct. If she'd walk in with a gun pulled she'd get shot before she could ask any questions whatsoever, so she figured entering through the back door could at least come as some sort of surprise.

She wasn't prepared for the sight in front of her.

Maggie, lying face down on the ground, unmoving. Her hand just a few inches away from her gun.

"No..." Alex's voice cracked as she leaned down to flip Maggie over, checking her for injuries. "Maggie... No, please... Please wake up..."

"She won't." A voice behind her. Before she could turn around and reach for her gun, she felt a sharp sting in her neck too.

Her arms involuntarily dropped Maggie onto the ground, and she slumped over her girlfriend's unconscious body, the darkness consuming her fast.