Disclaimer: I do not own anything in Arrowverse or Marvel Cinematic Universe, DC Comics, Marvel Comics or any characters or elements pertaining to the mentioned franchises or anything else you may recognize.

The Lair

"We stop Chase tonight." Sara ordered as they went to gear up. "Barry's gonna meet us there and Laurel and Dad are already preparing to mobilize the police on Chase and get them to move on him."

City Hall

"You wanted to see me, Miss Mayor?" Pike asked as he entered Moira's office.

"Frank, you need to see this." Moira said as Laurel showed him the laptop with Anatoly's message and Pike was surprised to see the surviving victim of the Throwing Star Killer's latest attack.

"My name is Anatoly Knyazev. I am the former Pakhan of the Bratva. Under American Law, I swear what I am about to say is the absolute truth and should be consider a Dying Declaration…"

Presidential Hotel, Star City

In the parking garage, the Green Arrow knocked out a guard, while Natasha snuck onto another guard and choked him with a garotte until he passed out. More guards came to look for any signs of suspicious activity until Oliver jumped down from the ducts and shot tranquilizing arrows, taking them out.

In the presidential suite in the top floor of the hotel, Adrian was having basically a business dinner with Bullseye, Mary and the Longbow Hunters.

"So you plan to poison Star City with the same virus your old man uses?" Bullseye inquired.

"Yes. But it's going to be on a much larger scale, the virus more efficient with more refined chemicals than what my father used and Oliver Queen and everyone he cares about will die, knowing that my father's legacy killed everyone in the city he loves so much." Adrian boasted before the lights flickered.

"What the—" Mary looked perplexed.

"He's here." Adrian smirked.

Frank and Natasha were in a shootout with the Jackals in the dining area, while Oliver and Roy were helping them.

"We'll hold them off, you get Chase!" Frank ordered.

Oliver nodded as he and Roy ran up.

In the parking garage, Sara, Roy, Rory, Barry, Diggle, Rene, Logan, Ray, Danny, Jessica, Luke, Colleen and Matt came across the knocked out guards.

"I think we can say for sure that Oliver's already here." Roy said.

"Guys, be on lookout. In case Chase calls backup, you hold them off. Sara, Roy, Ray, Barry, Danny, Colleen, you're with me. We need to find Oliver before it's too late." Matt said.

Matt, Sara, Roy, Barry, Danny and Colleen were in the dining area as Frank and Natasha were taking cover before Matt rushed at one of the guards and knocked him down. Sara whirled her batons, knocking out two more guards, while Danny and Colleen used their Iron Fists to throw at the guards the tables before Barry in superspeed knocked out the remaining guards.

"Hold them off, we got Chase!" Matt ordered to Frank and Natasha, who were on lookout at the corridor.

Oliver was almost at the presidential suite as he shot down Talia's students before facing his wife and friends. "What are you guys doing here?"

"Ollie, there's something you need to know." Sara said.

"Well, well, well, look who the cat drags down."

They turned to see Adrian emerge with Ikari, Mary, Bullseye and the Longbow Hunters.

"This is your plan? To come here and kill us all?" Adrian laughed, amused. "Come on, even if you did succeed in killing me, Oliver, you'd still be known as a murderer."

"Not quite, Adrian." Matt smirked and Adrian was taken aback. "You were prepared for every eventuality but there's one thing you didn't count on."

"Anatoly. He left Laurel an ace in the hole. A dying declaration, on which he told us everything you've done." Sara said and Adrian paled.

"Soon enough the world is going to learn exactly what kind of a man you are." Barry smirked.

"It's over, Adrian!" Oliver snarled.

"Not yet, Oliver!" Adrian glared as he pulled out his sword.

Oliver and Adrian rushed at each other, Oliver blocking his sword and pushing him back into the suite. Sara blocked with her batons as Mary attacked with her machete, while Colleen used her sword to block as Ikari attacked with his Kamas. Red fired darts at them but Danny used his Iron Fist to block them before he rushed forward. Bear readied his shield to block but the impact with the Iron Fist sent him flying back as Bear fell on Red, who was knocked out before Bear recovered.

Oliver kicked Adrian, sending him flying back as he crashed into the suite before getting up. They exchanged strikes with their weapons until Adrian knocked Oliver down but before he could deliver the final blow, Oliver rolled away and slammed Adrian to the ground.

Bullseye picked a bowl but Matt rolled away to dodge as Bullseye threw it. Bullseye picked a glass vase but before he could throw it, Roy jumped in and shot it, making it shatter in Bullseye's hand, while Matt kicked Bullseye in the face as he spat out blood.

Sara and Mary exchanged strikes, with Sara using her batons to block Mary's sword before they lost their weapons as they exchanged blows instead. Mary elbowed Sara in the face and kicked her in the chest, knocking her down as Sara spat out blood. Mary picked up her machete but before she could deliver the killing blow, Colleen kicked Ikari in the chest, sending him crashing towards Mary as they both fell down.

Outside the room, Frank and Natasha were shooting at the guards and the Jackals before one of them threw a grenade that exploded, stunning them. All sounds were suddenly drowned out as Silencer entered. As soon as Natasha recovered, she dodged Silencer's knife before she could cut her as they exchanged blows but Natasha then realized why were the Longbow Hunters feared even by the League as Silencer managed to cut Natasha.

Frank was in a disadvantage due to sounds drowned out as he took cover, while some bullets grazed him.

As more Jackals entered, they didn't notice a shadow sneaking up on them, while Logan cut them down, while Ray, in reduced size, shot down more Jackals before enlarging himself, while Barry came in to help, knocking out the Jackals in superspeed and knocking out Silencer, and the sound was back.

"Hope we're not too late." Ray said. "Where's Oliver?"

"A little busy at the moment." Natasha said.

Adrian slammed Oliver onto a table and it crashed under their combined weight before Adrian sent a barrage of punches at Oliver's face. Bullseye threw a glass shard at the chandelier above, cutting the line, causing for the chandelier to fall and Oliver kicked Adrian back and rolled away before the chandelier would crush them both. Both men got up on their feet, resuming their fight.

Bear and Danny continued their fight, Danny dodging as Bear attacked with his shield. Bear managed to scratch Danny's jacket with the blade of his shield before Danny forced Bear on his knees as he kicked him in the leg but Bear knocked Danny back as he swung his arm.

Bullseye picked some cutlery and threw it at Matt but Matt used his billy clubs to block before he jumped at Bullseye, striking him in the face as Bullseye crashed against the balcony window. Matt rushed at Bullseye as Bullseye blocked and dodged Matt's attacks before Bullseye threw Matt back in and threw glass shards.

Matt flipped away, with some of the shards grazing him and Roy and Danny blocked the shards before Matt threw his billy club at the target on Bullseye's mask, making him stagger back.

"Bullseye." Matt quipped.

Bullseye glared before he rushed at Matt and both of them exchanged blows. Bullseye rolled away and caught the arrow that Roy fired. Bullseye was about to throw it back at Roy but it exploded in sparks in his hands, knocking Bullseye down on the ground. Before he could recover, Danny struck him in the face, knocking him out.

As Bear came to attack them, Matt crossed his billy club connected into a bo staff with Bear's shield until Roy cut Bear in the leg with an arrow, forcing him on his knees before Matt and Danny sent an uppercut to his chin, knocking him out.

Ikari and Mary had gotten up on their feet in the meantime as Colleen and Sara engaged them. Colleen blocked as Mary attacked with her machetes, while Sara's batons crossed with Ikari's Kamas. Sara and Colleen were back to back as Ikari and Mary had them cornered.

"Since we can't defeat our opponents…" Colleen smirked.

"…I think you and I should switch. Ready?" Sara asked.

"Now!" Colleen ordered.

Colleen and Sara whirled around, Sara using her baton to block Mary's machete before striking her in the face as she staggered back, dazed. Before Mary could recover and do anything else, Sara flipped her over her back and hit her in the face, knocking her out. Colleen cut the handle of Ikari's Kama before she cut him across the throat. Ikari gagged before Colleen swung her sword and his head rolled down on the ground as body toppled.

Oliver's and Adrian's weapons clashed, trying to push each other back before Oliver kicked Adrian, making him stagger. As they attacked again, they knocked each other's weapons off their hands before engaging in hand-to-hand combat.

Adrian kicked Oliver, sending him stumbling back but Oliver dodged the following kick before elbowing Adrian, making him spit out blood. Adrian managed to hit Oliver but Oliver grabbed Adrian, slamming him to the ground and sending a barrage of fists that left Adrian with his face bloodied and bruised before Oliver grabbed him in chokehold.

"Go on! Do it! You came here to kill me, didn't you, Oliver? Come on! Kill me!" Adrian urged. When Oliver didn't tighten his grip, Adrian tried a different tactic. "If you don't kill me, I'm gonna come after everyone you love. Your mother, your sister, your son, your wife, Laurel, Tommy, I'm never going to stop until they all suffer for your sins! Do it, Oliver! Do it! I know you want to! Come on! Kill me!"

Oliver tightened the grip before he let go and got up. "No!" He breathed out heavily as Adrian glared up at him before Oliver got up on his feet and pointed at Adrian, glaring as they looked into each other's eyes, their faces inches away from each other. "I'm not gonna kill you, Adrian. Not because I don't want to but God knows I want to kill you but you don't get to destroy who I am! I will never give you the satisfaction of thinking that you're right about me! I'm done playing your sick game, Adrian! You will spend the rest of your miserable life in a cage, away from anyone else, knowing that this city, my family, rejected you! It beat you! I beat you at your own sick game without killing you! It's over, Adrian! And you've lost!"

The only sound was Oliver's heavy breathing as Adrian glared up at him and it was in that moment, when Quentin, Pike, Mahoney and several policemen entered.

"Adrian Chase?" Pike smirked, pulling out cuffs. "You're under arrest for the murder of Detective William Malone, framing of murder, kidnapping, attempted murder, blackmail and attempted terrorist attack."

Quentin then looked at the vigilantes, smiling at Oliver and Sara proudly. "Thank you. This city owes you a debt we can never repay."

"As long as this city is safe, you don't have to." Oliver smiled as they walked away.

Later, City Hall

Moira was addressing a press conference as she was at the mics. "It has been a greatly disturbing revelation to find out that Adrian Chase, the Assistant District Attorney of Star City, has been secretly using his position to undermine our system and committed several crimes as the Throwing Star Killer, including the murder of Detective William Malone, among others. He took many things from us, our security and faith in the system but with the help of the Green Arrow and the vigilantes, we have managed to ensure that the Throwing Star Killer and his associates face justice and our streets have once again become safe.

Tomorrow, we'll take another step forward and we will continue to make steps forward to make this city a better place for our families and children… just as my husband would have wanted to."

Starling General

Anatoly was on a stretcher with a bandaged head before his eyes slowly opened and he turned his head, not believing his own eyes. "Oliver…"

"Hey, Anatoly. It's over." Oliver said, relieved. "It's finally over."

A.R.G.U.S.

Adrian, Bullseye, Mary and the Longbow Hunters were in their cells, smirking as they saw Moira's announcement on TV.

Elsewhere

A young boy was walking out from the school bus and going down the street before he ran into a man on the sidewalk.

"William." The man said with an Australian accent.

"My name is Matthew." Willian lied, walking away.

"But it used to be William, right?" The man smiled. "Before you and your mother left Central City?"

William looked at the man in surprise. "You know my mom?"

"Actually, I know your father… and he knew mine." Joe smirked.

Group fight scenes are quite tricky but I hope I did a good job with it. I didn't involve more villains here because that would make the fight too congested and hard to follow and I think you can guess where have they been and what have they been doing in the meantime and I think we also know that Oliver has not beaten Chase just yet but at least Ikari is dead.

Considering what happened in the show, it's fitting that it's Pike and Quentin, who arrested Chase, don't you think? Hope you liked the reference to Daredevil Season 3 final fight, plus I got an inspiration from Stand with Ward and Queen's "The legacy of Oliver Queen". But we all know that this isn't over yet. It's kind of ironic that Joe and Chase both want revenge on Oliver for killing their fathers. Next will be 5x22 and then 5x23.

So, what do you guys think?

Please review and let me know if you have been enjoying this and want for me to continue.