"What happened?" Hank asked when they entered the control room at the DEO and saw some of the consoles smashed.
"Oh, yeah, all the detainees were about to be released so I….well I kind of stopped it." Kara explained.
"You couldn't have just used the override command?"
"I didn't know there was one." Kara confessed.
"Is that the Kryptonian approach? Find a problem and punch it?" Max questioned.
"Normally works pretty well, want me to try it on you?" Kara offered.
"I feel like you are not taking our friendship seriously." Max smiled.
"Can we deal with this later?" Hank asked. "Let's focus on the plan."
"I need Lucy and Vasquez." Alex said holding her hand out to Max who reluctantly gave her two of his earwig devices as he asked.
"Why?"
"As director Lucy has the pass codes we'll need and Vasquez has the technical background to see if my plan is even feasible." Alex explained.
"I'll take you to them." Kara said. "I had to lock everyone up, to stop them trying to free all the prisoners, again."
-00-
As Alex placed the devices on Lucy and Vasquez's heads as Hank and Supergirl held them still everyone looked on wondering if it would work. For a second nothing seemed to happen then suddenly the two of them gripped their heads in pain before looking round confused.
"What happened?" Lucy asked.
"Myriad has taken hold of the city." Kara said. "Everyone is a zombie."
"Why aren't we effected?" Lucy questioned.
"You were. Max has a device that stops the effects. Unfortunately he only has three left."
"Wait you knew and attack was imminent and had a solution and didn't tell us?" Lucy asked angrily before noticing Cat was standing watching. "And why is Cat Grant at the DEO? You do remember this is meant to be a secret facility Supergirl?"
"Good to see it wasn't just me you ignored." Hank said as Kara explained.
"Cat is protected from Myriad by one of Max's devices. I couldn't leave her out there, she would have been in danger."
"So you brought her here?"
"We needed to be here to carry out Alex's plan."
"Are you two insane coming back here? You know I am going to have to detain you?" Lucy asked looking at Hank and Alex.
"We didn't have a choice. We need to do this." Hank said.
"Any other questions or can we actually get round to saving the world?" Max asked.
"Yeah, why do I ache so much?" Vasquez asked.
"Right, yeah. I kinda had to blast you with the exhaust of my pod. To be fair though you were both trying to kill me and you had shot me in the arm with a Kryptonite bullet." Kara explained.
"Makes sense, I guess." Lucy said. "So what is the plan?"
"I need to borrow Vasquez." Alex said. "After that I'll explain everything."
"Fine." Lucy said as Kara looked at her and commented.
"You need to phone your dad, he's worried about you."
"Although he was also worried about bombing the city." Cat commented.
"What?" Lucy asked confused.
"I'll explain, while they work." Kara said.
"No. You need to recharge your cells. You are going to be fighting Non." Alex said. "Cat can catch Lucy up."
"Fine." Kara said reluctantly.
-00-
As Lucy finally walked into the control room having been briefed by Cat before using every threat she could think off to stop Cat publishing any details about Kara, Supergirl of the DEO she was dismayed by the damage.
"What happened?" She asked.
"Supergirl once again proving her approach is brawn over brain." Max said as he stood next to Vasquez and Alex who were looking at a screen showing lots of red dots.
"Anyone going to tell me the plan? And what are you looking at?"
"This is a map of all the cell phones connected to Max's LTE network." Alex said.
"Which we care about because?" Lucy asked.
"In order to disconnect people from Myriad we need to send a blocking or interfering signal." Alex started to explain.
"Except we have no network and no signal." Max countered.
"Not true. We can send a signal that replicates Hank's telepathy. It's crude, but it should work."
"Again, no network."
"We have your LTE network." Alex corrected.
"Which is not under our control and there is no way we can send a strong enough signal."
"You keep telling me you're a clever guy I am sure you will figure out a way to use the network for a few seconds. The signal doesn't need to be strong or long." Alex countered. "The network exists because most of the population have cell phones, which are both receivers and transmitters."
"So you are planning on sending a signal to every cell phone telling each phone to start transmitting the blocking signal?" Lucy asked.
"Yes."
"Except not everyone has a cell phone." Max countered. "And a lot of them will be down on battery by now."
"Which is why each cell phone will send two transmissions. One back to Non and Indigo, transmitting a virus that will destroy Indigo allowing Kara to take on Non. The other signal will free everyone from Myriad so if Non tries anything they should be protected."
"Don't see how that is helping the power problem or the fact people won't have phones with them." Max said. "Unless you think it is okay to kill every baby and child without a phone, not to mention their technophobic grandparents. That would seem hypocritical after you criticised my plan."
"It is the phones that need the power not the network. All we need the network for is to send a transmit command, we can do that in something the size of a text message. Every phone will have a range of about thirty feet. All we need to do is plug the gaps. Which we can do by sending the same transmission from each phone. Each wave will be offset due to timing or location. If we get the math right we can get those signals to constructively interfere and fill in the gaps." Alex explained.
"That is actually pretty clever." Max commented. "Marry me? Think of how intelligent our kids would be."
"You are insane." Alex said glancing at him before returning to work.
"That wasn't a no." Max pointed out as Cat asked.
"Can I at least publish the story of your proposal?"
"No." Lucy and Alex said simultaneously as Max gave his permission.
Just then Kara entered the control room.
"I thought you were resting." Hank said.
"I'm all healed and I can't just lie around and do nothing."
"I actually need you to get Winn back here." Alex said.
"Why?"
"He wrote the virus that took out Indigo last time. I need him to write another one."
"Out of interest does anyone I pay actually do the job I pay them to do?" Cat asked.
"So your plan will work?" Kara asked awkwardly ignoring her boss.
"No idea, but it is our best chance." Alex said as Max handed Kara an earwig.
"Okay, anything else I should know?" Kara asked.
"Nothing much, apart from Max asked your sister to marry him." Cat said.
"What?" Kara asked in shock.
"Kara, get Winn. Go." Alex said knowing time was running out.
-00-
"So you want me to kill Indigo, again?" Winn asked as he and Kara walked down the corridor of the DEO to the control room.
"Pretty much. Alex will tell you everything else." Kara said as they entered the control room and Winn saw Cat.
"Ms Grant?" Winn asked. "Um, what are you doing here?"
"Motivational speaking." Cat said half amused by how nervous Winn looked in her presence.
Winn then looked at Kara and asked. "Does she know about you?"
"Yes."
"Are you fired again?"
"Winn, focus. Virus." Kara said not wanting to worry about whether or not she still had a job.
"Right. What's the delivery mechanism?" He asked looking at Alex.
As Alex explained the protocols to Winn Cat moved over to where Supergirl stood in the corner and said.
"If this plan works you will have to fight and probably kill your uncle. Can you actually do that?"
"He's my uncle by marriage not blood." Kara said. "If I don't stop him many more people will die. I will do what I need to do."
"I'll go with you." Hank said.
"No, I need you to look after Alex. If something happens Alex will need you." Kara said. "If the plan works my cousin will be free and he can come and help me. Please, do this for me."
"Alex won't like it."
"She'll get over it. Besides if it goes wrong you need to be here to protect everyone else."
"Okay." Hank said reluctantly. "But if you change your mind. Let me know."
"I will." Kara said before looking at Cat and handing her a letter. "If something happens to me I need you to give this to Alex."
"If you go into the battle believing you need me to deliver this letter I am more likely to need to deliver it." Cat said not wanting to take it.
"Maybe, but it is important to me, so please take it."
"Why me?" Cat said taking the letter.
"If things go wrong Hank is likely to head into the battle and could die. The others are focused on what they need to do and I don't want to distract them. Plus I trust you."
"Very well. Just make sure I don't need to deliver it." Cat said as they heard Max exclaim from the other side of the room.
"I'm in."
Walking over they heard Winn confirm.
"Ready here."
Alex then looked up at Kara and said. "Once we send the burst we will trace it and let you know where Indigo and Non are." She paused then added. "Please be careful."
"Always." Kara said hugging her sister, whispering, "I love you." With that she disappeared in a blur.
-00-
"It's actually working." Max commented as they watched the screens. "Seriously you need to marry me and have my kids. They could rule the world."
"Max, if you and I were the only two humans to survive this and humanity's future depended on us procreating I would still not sleep with you." Alex shot back.
"As much as those words stung, you have still not actually turned down my marriage proposal." Max said.
"Kara, we have a location." Alex said trying to ignore him and remain focused on the mission.
"I'll be there in two minutes." Kara said back, her voice barely audible over the wind noise. "Is the plan working?"
"It seems to be, but we will have no way of telling if Indigo was taken out until you get there.." Alex said before warning. "As a result of being under the control of Myriad Non may know everything I know. He'll know your every weakness."
"I know." Kara said. "Alex?"
"Yes."
"If something happens, don't blame yourself. I'm going in."
Everyone in the DEO control room stood staring at the speakers listening to the battle between Non and Kara unfold. From Kara's grunting and Non's taunts it was obvious the battle was not going well.
"We will have visual in thirty seconds." Vasquez reported as she tracked a satellite.
"Take me out there." Alex said looking at Hank.
"Alex-"
"She is my sister, I am not going to let her die. Either take me out there or I will make my own way."
"Fine." Hank agreed just as a huge explosion was heard over the line a fraction before it went dead.
"Kara?" Alex called as the screens burst to life showing a huge crater in the desert. Vasquez quickly tapped away at her keyboard manipulating the image until she zoomed in on a red feature.
As the image continued to zoom in the occupants of the control room could make out Kara's motionless body.
"Kara?" Alex said fearing the worse as Hank held onto her.
Moments later Superman flew into the picture landing next to Kara before pulling her unmoving body into his chest.
A/N: Thanks for reading and reviewing. The final chapter will probably be up tomorrow. To the guest reviewer asking about prompts just leave me a message and I'll do what I can.