Scene shows Alfred looking around the new Watchtower seeing everyone manipulated including Bruce, Alfred wasn't making him extremely worried.

Alfred: Master-

Bruce straight up punches and knocks Alfred down. Bruce looks in front and sees a blond woman as the woman rips her blond hair showing it was a wig revealing Talia.

Talia: *to Calculator* Status?

Calculator: Just a second. *he finishes the final touches and activates a boost* You're on, Tetch. Beginning brain wave synchronization.

MH: *getting a boost* So many minds. So little time.

Talia: And a new age dawns. Even Ra's Al Ghul couldn't achieve this.

Scene shows Nightwing driving the Batwing with Robin, Knightcrawler and Batwoman inside and Batwing/Luke (seriously who's idea was to call Luke Fox, Batwing?)

Batwoman: Hey, Batwing, need a ride in the... Batwing?

Batwing: Very funny.

Batwoman: You sure they won't know we're coming?

Batwing: Not once we jam their radar and shut down the alarm system.

Nightwing: *activating electronic jamming* Good thing you got us those schematics.

Batwing: Hope my dad understands when he finds out I hacked his computer.

Knightcrawler: Sounds like some Thug Life shit, how do we deactivate whatever Talia used to coo coo them?

Nightwing: We don't, I trust Alfred that he can do that.

Knightcrawler: Ok... I also trust the OG.

Batwing: *getting the message from Nightwing* Got' em.

Nightwing: Engaging auto pilot.

The scene shows the four vigilantes about to jump from the Batwing and that exactly is what they did. They follow Batwing/Luke to the entrance he opened as Batwing falls slower, Batwoman extends her cape, as well as Robin, Nightwing shows small winds in his armpits as Knightcrawler shows a small cape to glide (like Batman Beyond). The five enter the Watchtower safely and Batwing closes the entrance. Unknowingly for them, Firefly was outside and saw them.

Firefly: Heads up, looks like we've got company.

Scene changes to Talia and Bruce walking towards the main area with Calculator, Mad Hatter and Tusk.

Talia: *sees the five bats run in the hallway* How long, Kuttler?

Calculator: 20 minutes at most.

Talia: Make it 10. *looks at Tusk* Get it. *now looks at Bruce* I brought you a little something.

Tusk walks in opening a suit case revealing the Batman costume. They hear steps and see David and by his side... Orphan.

Scene shows the five landing from a vent and starting to walk.

Nightwing: We've got to find the dignitaries and evacuate them.

Robin: What about father?

Nightwing: Our first priority is getting those people out.

Robin: Not mine.

Knightcrawler: We have to get the people out Damian, if we fight Bruce it will take too long and all this people will follow Talia's crap.

Out of nowhere Firefly appears and takes Batwing. They all saw that and grew in a bit of shock.

Knightcrawler: They know?

Talia: Yes we do.

The four remaining look at the same direction seeing Talia, Tusk and David.

Talia: We don't have time for this, Damian. Join us or die.

Later behind Tusk Batman appeared and Orphan as well.

Robin: Father.

Knightcrawler: Cass.

Batman and Orphan launched towards them, Batman goes over Nightwing and kicks Batwoman back to Tusk with Orphan kicking Robin and jumping towards Knightcrawler who catches her in mid air but David kicks him back as Knightcrawler lands on his back and sees David jumping towards him but Knightcrawler puts his foot on David and manages to push him to the same direction Firefly sent Batwing.

[There should be a GIF or video here. Update the app now to see it.]

(Starts music at 1:08)

Scene shows David landing in his back spitting blood as he smirked. Knightcrawler was walking towards him with his hands clenched in anger.

David: Now that's the anger I wanted to see.

Knightcrawler grabbed David by the throat and pinned him to a wall lifting him.

Knightcrawler: Bring... Cass... back!

David: Is her choice, right kid?

Knightcrawler looked back and saw Orphan who nods making Knightcrawler soften his grip.

Knightcrawler: Cass please.

David: She can't listen, she can finally become what she was meant to be, and I'm offering you a chance as well. *Knightcrawler raises an eyebrow looking at David* I'm willing to let you be with her if you become my student.

Knightcrawler: I prefer to take a bullet than take your offer.

David: Family is weakness, Cassandra's mother, I killer her sister and she? She went to kill me until realizing family was a weakness, I released her and unleashed her true potential. I could make sure that happens to you too, so Cassandra has someone to trust. Out of anyone of the family, you are the one she holds a great sense of trust, compassion and care.

Knightcrawler: I-I won't-

David: Your hesitating, you would do anything to make her happy. Tell me... what is she to you?

Knightcrawler: Why should I tell what she is to me?

David: The more you care, the more fragile you are, and believe me I know. Now tell me F/N, not from being Knightcrawler but being my kid's something, what do you choose?

Knightcrawler looks at the frozen Orphan waiting for some orders as he looks down breathing in and out and later looks away.

Knightcrawler: *looking at David* I made my choice. The answer... is no.

Knightcrawler grabbed David and threw him to the ground but he lands in his knees grabbing a sword and going towards Knightcrawler who showed his Tonfas and both clash weapons as Knightcrawler goes for an aerial kick on him who he dodge but Knightcrawler manages to kick him back. Knightcrawler pops some blades on them and uses his agility and goes for some kicking as he quickly changes to his weapon and manages to cut David's leg a bit. David started to swing very aggressively as Knightcrawler blocks them and ducks and kicks him in his gut. David got up and rushed towards Knightcrawler by leaping but Knightcrawler leaped towards him impaling his Tonfas on David's chest, as Knightcrawler lands on top of him pulling them out, as David coughed.

(Ends at 2:36)

Knightcrawler puts a blade in his jaw ready to actually kill him.

David: Do it. You were trained to kill, there's a small part of you who wants to. DO IT!!!

Knightcrawler: That part of me is dead. *he gets up and walks away towards the immobilized Orphan* Now let's go.

He grabs her wrist as kindly as possible but when he tries to move her, he couldn't. He looks back at her but later David.

David: I said she can go if she wants, I don't think she does. Kid... kill him.

Orphan punches Knightcrawler and goes for a back kick, making him spin to the ground. Knightcrawler gets up and blocks a few punches from Orphan but he goes for a punch which Orphan dodge and bits a rib accurately making him grunt, just to kick him back. Knightcrawler lands in all 4 and looks at Orphan.

Knightcrawler: People... are gonna die, Cass. I can't let my emotions and my love for you get the best of me this time.

Orphan gets in a fighting pose as Knightcrawler hyperventilates.

Knightcrawler: Please don't make me do this.

Orphan doesn't even more a muscle as Knightcrawler sighs and gets in a boxing fighting pose. They were about to engage to each other until the Watchtower wiggles and Knightcrawler see that they crashed to a building.

Knightcrawler: No.

Orphan takes that as an advantage and throws a batarang at Knightcrawler who manages to catch it and throws it even faster making Orphan dodge. Orphan dashes and clash forearms with Knightcrawler but he pushed her back. Orphan makes a backflip but Knightcrawler dashing goes to punch her which she moves out of the wag and he punches the ground cracking it. Orphan jumps and gets in his back punching his head bunch of times but Knightcrawler grabs her legs and throws her to a wall but she lands in it with feet in the wall and later lands in the ground. Knightcrawler grabs smoke bombs and throws them covering the area making them fight with ears alone, though advantage for Knightcrawler for also having superior senses thanks to the ACTH. Orphan heard a step behind and kicked back with Knightcrawler catching it and throwing her off balance. He slammed her to a wall still grabbing her leg but she shows three batarangs throwing it at him impaling his arm. He groans letting go as she shows a rope dart and throws it at him impaling his gut. Orphan wants to pull Knightcrawler but he just pulls her and he punches her to the ground. He pulls the dart of his gut but he is shown bleeding as he coughs a little.

Knightcrawler: That's not good.

He looks in front and earns a knee from Orphan who punches his shoulder hitting a pressure point, as he groans but he kicks her through a wall. He looks at his own shoulder as he felt the shoulder again. He looks at Orphan who was getting up as her mask was a but broken revealing her right eye and part of her mouth.

Knightcrawler: Cass please stop!

She throws another batarang at him but he dodges it just for Orphan run and sees a sledgehammer grabbing it and smacks Knightcrawler with it in his ribs making him groan but she smacks him with an uppercut as he lands in the ground. He takes his mask off spitting blood and looking back at Orphan holding the sledgehammer as she goes to slam him but he catches it and breaks the handle grabbing the hammer itself and hitting Orphan in the gut with it just to throw it away. Orphan gets up but Knightcrawler now Y/N runs and rams her through a few walls until they end up almost falling of the Watchtower. He caught Orphan by her wrist as she looked at him grabbing a knife but he throws her up making her land but as a thank you, she impales the knife in Y/N's hand, the one he is using to not fall.

Y/N: Dammit! Cass come on!

Orphan looks at him as she shockingly pulls the knife and pulls him up as Y/N looks confused.

Y/N: That worked?

Orphan straight up impales Y/N in the abdomen as he groans and she pulls it back and kicks him. Y/N spits blood and looks at Orphan. He also realizes the Watchtower was now stuck, it stopped moving, courtesy of Batwing.

Y/N: I won't fight you. Not anymore. *he let's his fist drop and stands up* If you wanna take the shot take it.

Orphan clenching the knife, she drops it and runs at Y/N tackling him and grabbing his throat going for the kill.

Y/N: But Cass... don't let David win... don't let him get... you.

From very far he sees David grabbing his stomach.

David: I did all this for her, F/N. She's my daughter, I'm making her strong, eliminating her weaknesses.

Y/N: Against... her will. *back at Orphan* Against your will... you kill me... you'll be your father.

David: She'll be better than me!

Y/N: More... like worse. Don't let him, break you inside Cass. Don't let him make you what... you are.

Orphan groaning grabs one of her father's sword and goes to impale him but he puts his other hand and it goes through it but he moves his hand out of the way with the blade almost hitting his forehead.

Y/N: Please remember who you really are, not a weapon, not a girl born to kill, but a girl with so many dreams taken away and now with hope to achieve them.

David was about to attack but Batwing appeared making a head lock behind him taking away with effort.

Y/N: You are not... his weapon... his kid... you're Cassandra Wayne, the girl who I did everything to make her happy, the one I... would die for.

Orphan started to shake as she pulled the sword from his hand and pinned both of the and went for the decisive strike as she goes for it leaving a scream while doing it as she does it. She impales Y/N but the scene shows the sword almost by his head, she takes her mask off and starts to show tears, also slowly moving her knees from his hands.

Cassandra: *crying* I-I-I'm...

Y/N manages to get up slowly as she looks down kneeling, he sees tears drop to the ground also seeing her sniff a couple of times.

Cassandra: *crying* I'm sorry... I-I-I'm so...

Y/N who also knelt puts a hand in her cheek and moves it so she looks at him. Y/N who was relieved showed a kind smile and with his thumb cleaned one of her tears still smiling.

Y/N: Is ok... I'm just glad you're back.

He puts his forehead on Cass as she keeps crying but he cleans them with her putting a hand in his.

Y/N: Is ok.

They heard a gunshot and looked at the same direction. Y/N stands up and helps Cassandra get up as they run to the direction of the gunshot. They arrive and see Batman with a gun in his hand but shaking he dropped it just to get caught by Nightwing who had a broken left shoulder and Robin. Means that Nightwing managed to talk Batman out of it, means that this time, words were stronger than action. Y/N smiled a bit with Cassandra by his side.

Batman: I'm sorry. I'm so sorry.

Robin: Is all right father.

Y/N saw Talia as he was fueled by rage, as she looks at him in fear and later back just to earn a punch from Batwoman.

Batwoman: That's for what you did to my father, bitch!

She looks at the door earning a hard kick from Y/N landing in a wall breaking in in contact but she didn't go through.

Y/N: And that is because I wanted to professionally kick an Al Ghul.

She looks at him and later at the others, also seeing David passed out.

Robin: It's over mother.

Batman: Your grand plan has ended.

Talia: How is it that I loved either of you?

Batman: I don't think you ever did.

Talia: Oh, beloved, you have no idea. I have thought of little else for the last 12 years. But nothing, not my passion, not the death of my father, not even our child could bring you to my side. I know now, I will never have you in this life. But perhaps, in death.

Batwoman: *seeing Talia run away* Get her!

Talia throws a grenade, exploding the window and jumping to an aircraft. Everyone saw that as they looked at her fly away.

Nightwing: She played us again.

Y/N: Not really.

Y/N clicked a button as when the aircraft was by the ocean, it exploded. Everyone looked in shock and later looked at Y/N.

Y/N: What?! She deserved for everything, making Bruce use a gun, controlling Cass, working with David, realizing she never cared for Ra's even though they're both cunts. Plus, Onyx was in the ship, she would engaged in battle with Talia and the ship would go splat.

Batwoman: What did you do actually?

Y/N: I found how the machine work so I managed to overcharge the battery. Talia is intelligent but very stupid as well, I took the remote she uses if someone was stealing the aircraft.

Batwoman: That's... actually shocking.

Y/N: I know!

Batman: We're gonna talk about this at home.

Y/N: We're gonna talk about your luck with women Bruce, is awful.

Batman just walks away as Damian follows him, as they all look at each other.

Y/N: Soooooooooooo... who's up for Italian? I'll pay.

Cassandra smiles and snuggles to his arm as he smiled.

Y/N: That's one yes.

Timeskip

It has been a day since the events, Cassandra was in a sofa in a robe with also her hair wet after a sadly 3 hour shower, watching a series that Y/N recommended her, until Y/N opened the door to the Mansion showing a bag.

Y/N: Brought ice cream, thought you would love it.

Cassandra smiles and moves aside as Y/N sits by her side giving her a bowl of chocolate ice cream while his was Neapolitan with ice cream. Dick appears putting a coat though still having his broken shoulder, seeing Y/N and Cassandra in the sofa.

Dick: What are you two love birds watching?

Cassandra: What's... a love... bird?

Y/N: Is related to flirting in some way and I'll tell you another time. This is just a moment of Dick Grayson finally living up to his first name.

Dick rolls his eyes and walks to Alfred.

Dick: Thanks for lunch, Alfred. *looks outside seeing Bruce and Damian* What's going on?

Alfred: Master Bruce is having a heart-to-heart with Damian. One can't help feeling bad. Despite her madness, she was his mother.

Scene shows Bruce with a hand around Damian looking at the water and some stairs. Scene changes to Knightcrawler in his motorcycle and Orphan in her own new one as they rev up and drive away. They catch up and see Nightwing and Batwoman along the way, the 4 look up seeing Batwing flying. The five land on the Bat-Signal since it was on, showing Batman and Robin by it. The seven hear gunshots and they see a car chase, with the person shooting being Penguin. The seven get ready as they grapple away with Batman being the last one and they go to take Penguin down as a family. The scene shows the Bat Signal in the sky until it shifts to the moon, as the scene moves down to a girl around Cassandra's age with black and purple costume, she had two batons and was walking from a fight. A thug was crawling towards the girl who looked back.

Thug: W-W-Who... are-

The thug receives a baton to the face and she starts to walk away.

Girl: Spoiler alert... you'll never now.

Well that concludes the 4th saga, this was kind of a weak story in my opinion, the next chapter or 2 will be fillers, you saw why with the last few words from the girl, hope you enjoyed it, vote for it and goodbye.