And here come the midseason finales! I hope everyone enjoyed "Nothing I Wouldn't Do Without You" - if you haven't read that yet, I'd go do that, because that covers all of "Crisis on Earth-X," and it's pretty important to read.

So, Star City celebrates its mayor's engagement, but the night is ruined by a bombshell concerning Oliver's case.

Enjoy part one!

***

Oliver expected a wedding to be the biggest party he would ever see Star City throw for him, but that wouldn't be until he actually married Kara.

But, looking around the venue decorated to celebrate his and Kara's engagement . . . he was almost dreading how overly extravagant the wedding was going to be. "I'm engaged, not married," he grumbled for the umpteenth time.

"They're trying to get on your good side," James chuckled as he, Oliver, and Winn made their way through the venue. "Probably thought doing all this was going to do that."

"The only way they'll get on my good side is if I see someone who looks sympathetic and says 'congratulations' and nothing else."

"That's a pretty good idea," Winn nodded.

"There's Thea and William," James pointed.

"Oh," Oliver smiled, walking over to where the duo was pushing through the crowd. "Hey, buddy!"

"Aunt Thea said I can have some champagne," William told him.

"I said a sip," Thea quickly corrected. "And only during the toast."

"Mom and Dad used to let us do that," Oliver chuckled. "That's just fine."

"Yeah, and we turned out all right," Thea smiled. "I think they would be pretty impressed with this party." She gestured to Oliver's suit. "And the man of the hour."

"Think so?" Oliver smiled.

"Yeah, of course," Thea nodded supportively. "And if they had met her, they would love the fiancée."

"I hope so," Oliver smiled wistfully.

"Where is Kara?" William looked around.

"Oh, she kicked us here ahead of time," Winn answered.

"No, that was Alex and Eliza," James corrected. "Kara looked a few seconds away from saying 'help me.'"

"That already happened," J'onn said dryly as he and Lena walked up.

"You guys got kicked out, too?" Winn blinked.

"I did," J'onn rolled his eyes. "Lena lasted slightly longer."

"I think I did just because I helped pay for all our outfits," Lena smiled fondly.

"Looking good, though," Thea smiled, looking over Lena's one-sleeve blue dress and the tuxes worn by the men.

"Yeah, thanks again," James added.

"No problem," Lena smiled.

"Hey, you!" Dig called, grinning as he and Felicity made their way over.

"Hey," Oliver smiled.

"Lyla apologizes for not being able to make it," Dig told him.

"A.R.G.U.S. missions do not stop for engagement parties," Oliver shook his head, understanding.

"Well, she was hoping that they would for this one," Dig smiled, reaching out. "Congrats, man."

"Thanks," Oliver hugged his friend tightly.

"So, where is the fiancée?" Felicity asked expectantly.

"Uh, well," Lena checked her phone. "It seemed like they didn't have that much more to do when I left, so – "

"Whoa," William's eyes widened to the size of saucers as he looked past the adults. "Lena, she looks amazing!"

That was the cue for everyone else to simultaneously turn, and Winn, who had already grabbed a glass of water, started coughing violently. James clapped him on the back sympathetically, though he and Oliver both stared in shock at the three women threading their way through the crowd – more specifically the blonde in the lead.

Kara took one look at Winn choking and sighed, glaring at Lena. "Will you stop trying to make all the guys choke to death when I walk into the room?"

"It never gets old," Lena giggled. "No offense, Winn."

He finished coughing, putting a hand over his mouth. "None taken."

Oliver slowly looked Kara up and down, and she fidgeted slightly, biting her lip. "Is it too much?"

"No," Oliver shook his head, smiling. "You look like an angel."

Kara blushed, smoothing out the skirt of her heather grey sleeveless dress, which was decorated with silver sequins from the bodice down, a matching shawl around her shoulders. Her glasses were off as well, and her blonde hair was twisted in a braided updo, pieces of her hair curled and framing her face. "I told Lena I didn't want anything over the top."

"With my checkbook?" Lena snorted. "Kara, that is not over the top. Over the top would be me paying for literally everything for the wedding."

"Don't," Oliver and Kara said at the same time.

"What?" Lena frowned. "I'm nice like that!"

"At least let us pay for some of it," Oliver shook his head. "Lena, you are way too kind for that."

Lena sighed. "Well, as long as you guys get the day you deserve."

"I'm still surprised they didn't elope while in Central," Thea remarked.

"Do not start that again," Oliver warned as Kara blushed.

"What's this about eloping?" Eliza raised an eyebrow.

"It didn't happen," Oliver assured her, throwing Thea a stern look. "Welcome to Star City, Dr. Danvers."

"Just Eliza, please," she smiled, giving him a hug. "Congratulations, Oliver."

"Thank you, Eliza."

"So this is what Star City does for an engagement party?" Alex looked around, whistling lowly. "What would they do for the wedding?"

"Something flamboyant that neither of us will want," Oliver grumbled, making Kara groan. "Sorry, angel."

"Well, it's your city, and they're trying at least pretend to show support," Kara looked around, sighing. "I can deal with it."

"You sure?" Oliver asked in concern, putting a hand on her upper arm. "Your senses are fine?"

"I'll survive," Kara smiled, reaching up and cupping his cheek. "I can do this. And whatever happens with the wedding . . . well, they could make the lights searchlights and I would be all right as long as I was with you."

Oliver chuckled. "I love you so much."

Kara beamed and kissed him, which was much easier with the heels she wore. Oliver kissed her back, ignoring for a few seconds that they were surrounded by several of Star City's important political figures.

At least, until Dig and Alex started clapping, and everyone else quickly followed suit. Oliver glared at them over Kara's head as she buried her face in his shoulder, her shoulders shaking in laughter. "Get used to this, angel," Oliver sighed, a smile growing on his face.

"I know."

***

"Oh, here we go," Alex grinned as the bartender poured shots for those at the bar.

"Best part about Oliver being the mayor? We get free booze," Rene smirked as he, Curtis, Dinah, Alex, and James took their shots. "Salud!"

All five tipped their heads back and drank, Dinah and James grimacing slightly. Curtis just cleared his throat. "We didn't have an engagement party, but Paul and I had, um, specialty cocktails made at our wedding. The Holtini and the Peach Paul Sangria." He chuckled, then looked down. "We also wore matching white tuxes." The four others weren't sure what to say to that, but Curtis got the bartender's attention again. "Can I have a glass of champagne, please?"

"You OK?" Dinah finally asked.

"Me?" Curtis blinked. "Oh, yeah. Of course. Just because I'm divorced doesn't mean that I can't handle celebrating people about to get married."

"I'm just glad Mon-El isn't here," James muttered, tapping his glass on the bar. "That guy is the last person we need to see."

"Did Winn show you the footage?" Alex asked.

"Oh, yeah," James chuckled. "It made me confirm that I one hundred percent do not want to ever cross Slade Wilson, Malcolm Merlyn, and Laurel Lance ever."

"Shame they can't be here," Alex sighed.

"Yeah, two dead people and someone known for trying to take out the entire city," James snorted. "They'd stick out like a sore thumb."

"Well," Dinah shook her hair out of her eyes. "Not to kill the mood, but I'm gonna say that I'm not that into weddings."

"Shocker," Rene rolled his eyes.

"Well, the idea of spending the rest of your life with one person seems pretty unrealistic, and also pretty boring."

"Unless you're vigilantes," Alex mumbled under her breath, making James choke on his next drink.

"That's probably why I've had so many busted engagements," Dinah added, almost as an afterthought as she checked her beeping phone.

It was Curtis and Rene who choked that time on their drinks. "Say what?" Alex blinked.

"What?" the guys asked at the same time.

Dinah sighed, seeing the text she had gotten: Why aren't you answering my calls? "Be right back," she told them, walking off.

"What?" Rene protested. "You just gonna leave on that bombshell? That's what you're gonna do?"

James huffed lightly as Dinah smirked over her shoulder at them. "No offense to the lady here, but I don't understand women sometimes."

"Sometimes, I don't understand men," Alex raised her glass in response. "No offense taken."

"Is it me, or has she been acting weird lately?" Rene asked, turning back around.

"Oh, no, she's definitely been on Upswipz," Curtis nodded. "She's been secretly texting with somebody for weeks now."

"Good for her," James nodded.

"You know, maybe you should start dating, too," Rene told Curtis.

"Ohhhh," Curtis held out. "Heh. Yeah. I date plenty."

"Oh, really," Rene raised an eyebrow. "Who?"

"Oh, man," Curtis grinned nervously. "So – so many guys."

"Wow," Rene gave him a dubious look, making James and Alex exchange glances.

"There's one guy in particular who I'm dating," Curtis said, picking up another shot, and the two from Earth-38 backed up, leaving the two Team Arrow members at the bar. "Uh, his name is Dom Perignon. He is smooth and expensive, and he's really nice. Uh, but there's, like, other guys, too. I'm not trying to be tied down right now, you know."

"Who? Like, Tom Collins, Rob Roy?" Rene raised an eyebrow.

"Not actually a gin guy," Curtis shook his head.

Rene snorted.

***

"Leave some cake for the rest of the guests," Oliver said in amusement as Kara started on her third piece.

"What?" Kara protested. "It's from my favorite bakery in Star City!"

"That was kind of the point, angel."

"Love," a voice came over the mic suddenly, and both of them turned around to see Curtis speaking into the microphone. "What is love really?"

"Oh, boy," both said at the same time, the rest of the team gradually coming closer, James and Alex in particular looking worried.

"It's not tangible, so who's to say it's not just made up?" Curtis asked, moving his arms dramatically, splashing champagne out of his glass. Quentin winced, pinching the bridge of his nose and looking down, J'onn and Eliza exchanging concerned glances. Winn was biting his lip to avoid laughing, Lena's shoulders shaking slightly as she covered her mouth with her hand. "I mean, there's no hardcore proof that it actually exists! I mean, look, I love a lot of things – sweaters, math, coffee, but, you know, I'm not gonna marry that stuff!" Kara coughed as she inhaled a piece of cake, and Oliver twisted to find Rene. When he saw him standing with Dig, he jerked his head towards Curtis. Luckily, Rene understood and hurried to relieve the man of the mic. "What is marriage anyway? Like, what is it? Like, is it – it's a paper that says 'oh, I'm owed to you forever.' I don't – no! I can leave like that, so what is marriage really when it boils down to it? I have some more stuff to say – "

Rene grabbed the mic and yanked it to him. "And everybody give Curtis a round of applause," he cut in. Lena and Winn finally laughed as they obliged, Oliver shaking his head in amusement. "Thank you, Curtis," Rene nodded as Felicity hustled Curtis to the side. "Thank you." When they took him off, Dig confiscated Curtis's champagne glass, giving him a tough look. "Um, I think what my friend is trying to say is, um . . . " Rene turned to Oliver and Kara. "True love is . . . so special that we all dream about it, and when I look at Oliver and Kara, I'm reminded of how I felt about my wife on our wedding day. And this isn't your wedding, I know, but even before then, we were so in love. We would do anything for each other. I mean, no matter what! And that is the epitome of Oliver and Kara." Kara blushed, making Oliver smile and kiss the top of her head. "Yeah," Rene smiled. "I mean, you guys have had your struggles, but you always work through it. These are two of the most genuine people in the world, and they deserve all the happiness, and I'm so fortunate to call them my friends. So," he held up his glass. "Please raise a glass to true love." He smiled at Oliver and Kara, which they returned. "Oliver and Kara."

"To Oliver and Kara!" everyone repeated, Oliver smiling at everyone as Kara waved shyly.

***

"This is only a courtesy dance because your speech was so sweet," Thea gave Rene a look as they slow danced later, Oliver and Kara still wrapped up in each other a few feet away, Dig dancing with Alex as Winn and Lena danced.

"I have my moments," Rene shrugged, then frowned, noticing her wistful look. "You OK?"

"Yeah," Thea sighed. "You know, just, um . . . " She looked around. "Thought a friend might have come. Would have been nice to see him."

"Oh, it's a him?" Rene raised an eyebrow. "I'm guessing he's more than just a friend, then. Thinking of weddings make you nostalgic for the ones you love. I definitely miss my wife and my family." Thea nodded absently, and Rene smirked. "You know, for what it's worth, I did see the DJ checking you out."

"Oh, no, no," Thea grimaced. "I don't do DJs. I had a thing once . . . it did not work out."

***

"Salud," Quentin raised his shot glass.

"Salud," Eliza and J'onn repeated, all three tipping back their drinks.

"Ah," Quentin smacked his lips, looking around. "I have to say . . . I almost thought Oliver would just ask Kara to elope."

"That was the running gag in Central City, apparently," J'onn smirked.

"Oh, I probably would have forgiven Kara eventually if she had," Eliza sighed. "I still would want to be there if she did."

"If they had in Central City, it would have just been Barry, Iris, and Dig as witnesses."

"Then I wouldn't have been the only one who would have been upset."

"Definitely not."

"It's good that you both are here," Quentin told them. "Kara's adoptive mother and . . . well, you're not her father, but you're as good as, J'onn. If only Oliver's parents were here."

"Well, they'd be proud of him," J'onn said. "And if they're not here, you are."

"Me?" Quentin scoffed.

"You're as good as a father figure for him," J'onn nodded. "From what I've heard, you two have come a long way."

"I can't speak the same, but you care about him," Eliza smiled.

"Well, that I can agree with," Quentin nodded, then looked down when his phone rang. Frowning, he pulled it out to look at the Caller ID, and he tensed. "It's Jean Loring. Oliver's lawyer."

"Oh, no," Eliza sighed.

"I got to take it," Quentin looked at them apologetically.

"Go," J'onn nodded.

***

Kara sighed happily as Oliver tugged her closer, bending down so their foreheads touched as they danced. "Could this night get any better?" she asked with a smile.

Oliver hummed absently, then heard a throat clear. They turned to see Quentin give them a smile, which looked more like a grimace. "Uh, so sorry," he told them. "We – we got a problem."

Kara looked up at Oliver sheepishly. "I guess not."

"Come on," Oliver took her hand. "Come on," he added to Quentin, leading them off to the side.

"Hey," Alex joined them, looking worried, J'onn and Eliza behind her. "Everything OK?"

"No," Quentin admitted.

"What's going on?" Oliver asked.

"Well, listen," Quentin spoke quickly. "I really did not want to do this right now, but Jean Loring just called, and she said I got to tell you right away."

"It's OK," Oliver assured him. "What's happening?"

"I told her you were in the middle of celebrating your engagement – "

"Quentin!" Oliver said sharply, making him shut his mouth. "What's going on?"

Quentin took a deep breath. "The prosecution's smoking gun? It's a witness who is willing to testify that you are the Green Arrow."

Alex's eyes widened in shock. "What?" J'onn asked sharply.

"Who?" Oliver demanded.

"Well, that information's still under seal," Quentin said grimly. "But it's someone on the team."

Kara blanched as Eliza gasped, and Oliver gritted his teeth, turning to look out on the dance floor.

How could this be happening again?

***

"One quiet night," Lena buried her face in her hands as Oliver restlessly paced the bunker, Winn looking over the computers as Kara watched her fiancé worriedly, J'onn, Alex, and James nearby. "Is that too much to ask for?"

"I can't believe this is happening again," Oliver ground out.

"Hey, hold on a second," Kara held up her hands. "We do not know this is an Evelyn Sharpe situation yet."

"It's a betrayal," Oliver shook his head. "I never should have trusted them."

"It's not a them," J'onn reminded Oliver. "It's a one."

"Yeah, a one who wants to out Oliver to the FBI that would lock him away for life," Winn pointed out. "Which is an awfully long time."

"Not helping, Agent Schott!" J'onn glared at him.

Footsteps from behind them made everyone turn. "Hey, kid," Slade frowned as he, Malcolm, and Laurel approached. "We got your message. Didn't expect to hear from any of you tonight."

"What's up?" Dig asked as he and Felicity joined them.

"Someone on the team gave me up to Samandra Watson," Oliver answered.

"What?" Malcolm's eyes narrowed to slits.

"That's impossible, Oliver," Dig shook his head at once. "No one would do that."

"Lance got it from Jean Loring. Jean Loring got it from District Attorney Armand."

Dig closed his eyes. "OK, I'd say that's pretty solid evidence saying someone betrayed him," Laurel gave Dig a look.

"You ruled out these two?" Slade nodded to Dig and Felicity, then held up his hands when both glared at him. "He said on the team. You two are on the team."

"Why would I, the first one to start working with him six years ago, betray Oliver only to put on the hood for him?" Dig asked.

"Six years to Curtis's two and a half for both of them," Oliver nodded. "They've been with me this long. Why wait until now? But thank you for your concern, Slade."

"Just have your best intentions at heart, kid," Slade shook his head. "This shouldn't have happened to you tonight."

"What about them?" Felicity pointed to the three.

"Dead," Malcolm pointed to himself. "Dead," he pointed at Laurel. "Wouldn't be able to walk into Watson's office without being shot on sight," he pointed at Slade.

Kara snorted, quickly clapping a hand over her mouth. "Point," Felicity winced. "OK, so it's Curtis, Dinah, or Rene. That's what we're going with?"

"None of us met Agent Watson until Thanksgiving, and even though Alex heard of her, she never actually met her," James nodded.

Felicity took a deep breath. "OK," she walked over to the computers, where Winn was still working. "What have you got?"

"I've got surveillance running on the three of them, and I've just started on sending worms through texts and emails," Winn answered. "Not that I like it, of course, but . . . well, no one likes a betrayer."

"You're spying on them?!" Dig's eyes widened.

"I'm not spying!" Winn threw up his hands. "It's . . . it's called keeping tabs, OK?"

"Oliver, why not just confront whoever this is and give them a chance to come clean?" Dig turned to him.

"Yes, the person is just going to waltz forward and take a bow," Malcolm rolled his eyes.

"The wizard's right," Slade nodded. "Whoever this is ratted Oliver out to the FBI. They won't be forthcoming."

"And how do we know this isn't just the surface of this?" Alex agreed. "It's a bit extreme, yes, but this is the best we can do with what we've got."

"John, I don't want to spy on them, but if you have a better idea, I'm all for it," Oliver told him, holding out his hands helplessly.

Dig deflated, shaking his head. "No," he admitted.

"If someone goes somewhere suspicious, we'll know," Felicity said, sitting down with Winn.

"Felicity, we were all just at the engagement party," Dig reminded her. "The most suspicious place they can go is out for late night pizza."

"Lots of things can be said over late-night pizza," Kara mused.

"Kara's right," Oliver nodded. "Either Curtis, Dinah, or Rene gave me up. We need to know why, we need to know who. Otherwise, when you put the hood back on, you could be next."

Dig sighed, conceding the point. "We'll find out who it is, Oliver," Lena told him.

"I'm not leaving until we find out who," Alex agreed.

"Seconded," Winn raised his hand, not looking away from the computer.

"Thirded," Lena agreed.

"Fourthed," James nodded.

"I guess you're stuck with us," J'onn smirked.

Oliver smiled faintly. "Guess that's not too bad."

"Nah," Kara smiled, taking his hand. "You've got more people than you think you do."

Oliver nodded, kissing the top of her head, holding her close as they watched Winn pull up a satellite map of Star City, where Curtis, Rene, and Dinah were highlighted and being tracked.

***

I will say, this episode caught me by surprise. Talk about a midseason finale. Anyway, there's a reason I chose to do this episode first. You guys will see why when "Reign" comes around.

I'm hoping to get part two done tomorrow, or by Friday. Stay tuned, everyone!