The Manta's Contract, Part 2

Episode 53 of Nightwing & Batgirl.
== Plot ==
Deathstroke had Aquaman sit at the back of the Javelin, and put his seatbelts on. Then, he went on the driver's seat and piloted the Javelin to Black Manta's hideout. He told his commandos that they could now continue stealing cargo shipments now that the Justice League is down. His commandos did so. 
"I've got what you wanted. 500 mil in cash. Now, fulfill your end of the deal!", Deathstroke said, as he entered Manta's hideout and showed Aquaman from the Javelin. 
"What do you mean? I've got no budget to pay you", Black Manta said, breaking the deal. 
"And you thought you could ask me to do the dirty work to your own gain? You thought you could get away that easily? That's where you're wrong. Aquaman's mine now.", Deathstroke said, as he shot Black Manta on the shoulder with his wrist's laser pointer. 
Black Manta yelled in pain. He told his army to go follow him. Then, Slade asked some of his commandos for back up, and they came immediately and battled Manta's soldiers. Then, the commandos he assigned to steal cargo shipments told him that their cargo shipment theft has been a success. 
"Good. Now let's head to Atlantis", Deathstroke told his commandos. The scene moves back to the Watchtower, where everyone regained consciousness now. 
"I can't believe it. We've been taken down by one man", Flash said. 
"Even though he injected himself with supersoldier serum, he shouldn't have been able to defeat us in full force. He must've trained for this all his life", Batgirl said. "Let's now move on from defeat and focus on bouncing back", Superman said. 
"Agreed.", Flash said. 
"I've got something to tell you all. Before I lost consciousness, I saw Slade carry the unconscious Aquaman to the nearest elevator. He must've took him away.",Nightwing told everyone. 
"My husband! We need to get him back!", Mera said. 
"So, what's the plan?", Nightwing asked. 
"Every failure of the League will be accounted to us, the founders. We can't risk all of your lives against Slade once again. We're only going to deploy a select few.", Superman said. 
"Makes sense", Batgirl said. 
"I'll call Aqualad and Aquagirl", Mera said, as she contacted them using her communicator, but right after the answer, Aqualad's first sentence was that,"Queen, Atlantis is under attack!". 
"Oh, screw it! Let's get there as soon as possible", Mera alerted the Leaguers. 
Superman assigned Green Arrow, Black Canary, Supergirl, Huntress, Hawkman, Batwoman, along with Nightwing, Batgirl, and the core Leaguers. Now, the assigned Justice League members entered the Javelins and were deployed. They headed to Atlantis at full speed. They used the Javelins' underwater mechanisms reaching the ocean, and in a few moments, they were able to reach Atlantis. 
"Oh no!", Flash's first words. The Atlantean army was outmatched by Deathstroke's commandos. At Deathstroke's Javelin, Aquaman regained consciousness. But, he was unable to get out of his seat because Deathstroke tied him up with strong adhesive straps along with his seatbelt. He was also gagged and was unable to speak. The League now engaged in battle. Black Manta's army also came to Atlantis, then on a call, Black Manta told Deathstroke, "You're going down, traitor!". Black Manta's men took down Deathstroke's commandos and Atlanteans. 
"No, I'm not. I don't need my cash out anymore. My men and I are now selling shipments to the Black Market. Now, I'll have enough money to support my own operations", he replied. 
"How dare you do that?", Manta angrily asked.
"You asked me to do something that'll catch the League's attention. I just followed what you ordered.", Deathstroke replied. 
"Why, you?! I didn't mean something like that! You'll never get away with this!", Manta said, dropping the call. 
He was shooting lasers from the Javelin at the Atlanteans, when suddenly, Superman came crashing to his ship, cracking the dome wide open. Mera also came and hit Deathstroke hard. Then, she and Superman freed Aquaman. Now, Aquaman used his telepathy to call his sea friends. Whales, octopus, and small fish helped the Justice League and Atlanteans battle Deathstroke's commandos and Manta's soldiers. Aquaman, Mera, and the core Leaguers went right at Deathstroke, who was able to hold his own and defeat them. Then suddenly, a huge whale bashed at Deathstroke and he fell down Atlantis' ground hard. Later, the Atlanteans, with the help of Nightwing, Batgirl, Aqualad, Aquagirl, Green Arrow, Black Canary, Supergirl, Huntress, Hawkman, and Batwoman, were able to defeat Deathstroke's commandos. Now, they told the Atlanteans to leave Deathstroke to them. 
"That's enough destruction you've caused on our kingdom today, Deathstroke!", Aquaman said. 
Altogether, the heroes combined their attacks against Deathstroke, but he's able to resist damage from some of the weapons thrown at him. He fought back and hit them harder, but the heroes kept battling. Batman could barely stand up, but he was able to shoot a tranquilizer at Deathstroke. Slade was able to withstand the tranquilizer's effects at first. 
Green Arrow had a fistfight with Slade and said "What are you doing here, rival? Can't handle me that's why you conspired with a villain like Black Manta to take us down?", Green Arrow told him. 
"Actually, I had my own intentions", Deathstroke replied, punching him in the face. 
Next, he beat down Green Lantern, Flash, Nightwing, Batgirl, Huntress, Black Canary, Hawkman, and almost taken down Superman and Wonder Woman, before the supersoldier serum's effect on his body wore off, causing him to weaken. The hits he landed on Superman and Wonder Woman started to weaken. Wonder Woman laughed it off and said, "It tickles". Now, Superman and Wonder Woman delivered finishing blows. Green Arrow rose up and told Superman and Wonder Woman to give way, as he is about to shoot Deathstroke with electric arrows. 
Slade could no longer fight, as Green Arrow released the bow string and said, "You're going down, my rival." 
The arrows hit Deathstroke, and he was electrocuted and fell to unconsciousness. Now, Nightwing and Batgirl went and carried Deathstroke's unconscious body. The Atlanteans bowed to the Justice League to show respect. "I thank you, my ever courageous army for standing our ground against Deathstroke and Black Manta's forces.", Aquaman told the Atlantean guards. Now, the Atlanteans cheered as the League are about to make their way out the underwater city. 
"Batman, you are the real hero", Mera told Batman as he embraced him. 
"Yes, he is. He delivered the real weakening blow to Slade", Batgirl replied. 
"It was nothing. I was simply prepared for anything.", Batman replied embracing Mera back. Once again, Aquaman, Mera, Aqualad and Aquagirl thanked Nightwing, Batgirl, and the Justice League for help, and Aquaman and Mera shook hands with Batman, Superman, and Wonder Woman. Aquaman joined the Leaguers as they went back to the Javelin and brought Deathstroke to the Watchtower. 
Manta saw the battle and Deathstroke's defeat, from his supercomputer's monitor, and he smiled and said, "You deserved it". 
The scene moves to the Watchtower, where Deathstroke's body is strapped to a chair, while being interrogated by the League.
"You told me in our exchange that you had other intentions aside from fulfilling Manta's command? So, what is it?", Green Arrow asked. 
"He broke our deal by not giving me the amount I asked, so I did not deliver Aquaman to him. Actually, I spared his life", Deathstroke said. 
"That's bull!", Aquaman said, enraged. 
"Let him continue. He still hasn't got to part of his intentions yet.", Superman told Aquaman. 
"So, I ordered my commandos to steal cargo shipments and sell them to the Black Market, cause shipments got the highest value at the present. I would've been able to support my own operations as an independent mercenary, if not for you!", Slade told the League. 
"Cool. So you departed from his evil schemes.", Flash asked. 
"Exactly. Now you can work with me. Together, we'll be able to take down the Black Manta", Deathstroke offered the League. 
"We sincerely apologize but no! After all the destruction you've caused to us and Atlantis, we can't trust you that easily anymore", Superman answered. 
"Yes. We don't take offers from bad guys", Batgirl said. 
"Alright, then. I respect your decisions. Farewell for now!", Deathstroke said, as he immediately pressed the button at the center of his utility belt, and teleported away. Nightwing tried throwing a Birdarang at his belt but he was late. Deathstroke was already gone. 
"Great. Now we have to go after Deathstroke and Aquaman, now working independently from each other.", Green Lantern said. 
"Not really. Black Manta should be our main focus now. He poses the greatest threat to my kingdom and to us right now, especially now that we know he's the one who's organized attacks on my kingdom", Aquaman said. 
"You are right. Let's expect the worst from Black Manta", Wonder Woman said, as the Justice League all agreed. 
At Black Manta's hideout, he had a little monologue. He said, "I still got my big guns. No worries for me.", as he opened a door, and Merdo the Wizard, Scavenger, and Ocean Master came out of it. The scene fades, to black, with only Black Manta's red glowing eyes seen.
== Characters ==
=== Heroes: ===
* Dick Grayson/Nightwing
* Barbara Gordon/Batgirl
* Arthur Curry/Aquaman
* Mera
* Garth/Aqualad
* Tula/Aquagirl
* Clark Kent/Superman
* Bruce Wayne/Batman
* Princess Diana/Wonder Woman
* Barry Allen/Flash
* Hal Jordan/Green Lantern
* Shayera Hol/Hawkgirl
* J'onn J'onzz/Martian Manhunter
* Oliver Queen/Green Arrow
* Dinah Lance/Black Canary
* Kara Zor-El/Supergirl
* Helen Bertinelli/Huntress
* Katar Hol/Hawkman
* Kate Kane/Batwoman
==== Other: ====
* Atlanteans
* Atlantean guards
* Nuidis Vulko
=== Villains: ===
* Slade Wilson/Deathstroke
* Black Manta
* Deathstroke's commandos
* Manta Men
==== Cameos: ====
* Merdo the Wizard
* Scavenger
* Orm/Ocean Master