A/N: Hey. Here to address that I've kept some gaps that needed to be filled in terms of the ties in characters, in relation to the story. By words, chapters, it is long. I had a decent idea of making this chapter a long one. It was totally inspired from the Arrow Season 7 flashforward scenes, which takes place in a future, 2040. Taking some aspects of it into concept, and inspired from a few fanfiction stories I've read, I intended to build this entire story, resolved on the future, into a big one. Similar to my previous story, which I completed. Seeing it now, adding significant lines that jumped straight off. I'm not even sure this whole story would be cover the long way. All I can say is it depends on what ideas I embed on the story.

Mount Justice

In the Mission Room, everyone is rallied together via Dick's command. They're all aware of what's about to come.

"Alright team. As you're all aware; Dark Supergirl's time to cause havoc is coming. We only have 30 minute. We've taken our rests, our breaks, our cover-ups, and our training. This is a fight for our lives. Kryptonite or not, some of us have powers. Powers we'll use to hold Dark Supergirl to buy as much time we need. Even if we fail. People. We are facing a threat in an unrivalled scale beyond anything we've encountered. The Deathstrokes. Atlas. Billy Numerous. Doctor Light. Sportsmaster. Clarion. Even far worser than the likes of Joker and Luthor. It will be difficult", Dick proclaims. "I need to be certain that you're all prepared for this. Are you all substantial inside to act against? Step back
if you-". Dick shut down when he overhears a noise of a bomb placed behind him. He doesn't feel any physical matter hitting on him. It occurred outside of the large hatch, which is the main entrance to their headquarters.

Everyone mumbled about Parademons already showing up, before converting into their fighting stances. Kid Flash steadied like he's taking a stage to race. Batman's former proteges prepare into their fighting stances. People like Felicity and Iris stayed behind. Iris silently prays they make it out alive. Especially herself and Wally. Other members of Young Justice steady their launch of respective attacks. An engagement that will lead to their deaths.

The door smashed down by the combined forces of a particular speedster, a super-strength lady, and a floating man, dressed like a bat.

Members contemplate on who they're encountering. Until Dick wavers them all to stand down as he perceives some familiar faces. Specially Iris, whom ran to the man he recognised as her husband, judged by his chin and the texture of his suit.

Iris sledges into Barry. To feel her husband's familiarised body and warmth. Barry responds the gesture, wrapping his arms around Iris. Only minor difference was his body was so hairy, and his chin is full of beard. Barry soon gets a clutch from Wally, whom muttered how much he missed the fastest man alive.

Felicity confronts Dinah, Zoe, and Roy in a group hug.

Jason, Barbara, Tim, and Dick ran to Batman's point. They exchange words progressing to understand each other's identities and shared history. Bruce was amazed at how much things have changed over the past few decades.

Caitlin and Cisco reunited, and reconciled. Each apologising the other, considering oneself the blame.

Mia and Nora spaced apart from everyone, joining with the rest of the heroes that simply stood, bewildered.

"So tell me Nora: what does it feel like to finally see your own parents reunited in your hands?", Mia asked.

"Honest. I don't", Nora simply said. Her eyes were focused on Barry and Iris reunited. "Though it's remarkable to observe the reunion".

"You may perceive it too Mia", Thea approached to the two. Mia was confused by what she means. "Going to the past, you might meet your parents. Just letting you know what you're coming up at".

Mia nodded, understanding the possible terms, that will forward to compounded outcomes.

After a quick minute of springing each other's faces of recognition, that display greatness and admiration for all of them, everyone assembled together, awaiting orders from the man, whom Dick promoted to lead their huge army. Some doubts were held after overhearing news about Superman's death, which troubles everyone. Superman was the only one reliable to square up to Dark Supergirl. With his death, there's a probable chance that they'd fail. Bruce was the one begetting the speaking and the lecture. Latter whom is supported behind by Barry, Dick, Mia, Thea, Roy, and Barbara.

"Fellow members of the Young Justice division. As you are all aware, our time is reaching its climax. We are soon to face Dark Supergirl's army. It is important that we are ready. And we acknowledge that we don't have the terminal resources to kill a Kryptonian. Let alone neutralise her. But we can't let it stop us from completing the primary mission. Our objective is to buy time for those two...". Baman gestures his gaze to Nora and Mia. "...and myself to cut short that we make it safely back to the past. Forwarded that we know that Dark Supergirl's next ambiguous scheme lies in the past. We're going to be assured that she won't rule triumph in the past like she did in our time. We will prevent her from succeeding her plans even if we lose a gale of our marble. I can understand that it is unnerving that you are forced to nuzzle in this battle. Which is why I uplift a selfish contemporary choice; sit in the room and force your obedience to someone who will enslave you, and torture you". Bruce shifts his eyes, covering from the left to the right of his audience. "It's all down to what you choose. We are Earth's last resistance. Eminently the last of the resistant forces in the whole multiverse. The fate of it rests in the decisions you make. Speak now and you will have sorted your ways".

Instantly, everyone approves to be partake in this ensued conflict, making the high ranked involvers, like Barry, showcase a pleased grin. Bruce shared a faint weakened smile, one caught by Barbara, Jason, and Tim.

Batman twirls around, meeting unexpectedly Barry.

"What?"

"I need you do something for me. I need you to make sure my daughter is safe. Even Mia", said Barry.

"Why aren't you coming along? And why isn't Wally?", Bruce heaves, hearing from Barry when they were discussing a plan in a private room, with Cisco, Gypsy, Iris, Felicity, Barbara, Dick, Mia, Nora, Wally, Roy, and Thea.

"Some of us need to stall Kara", said Barry.

"Through speed"

"Correct", Barry confirms it. He knows his and Wally's speed would be enough to delay Kara, whilst Bruce, Mia, and Nora travel to Dark Supergirl's station to retrieve William and Linda. "The Tom and Jerry playthrough".

"I can see why Oliver gets pissed at you sometimes", Bruce claims, given a smile from Barry, regardless of the latter having been tortured and broken for years. To him, he was glad he got to see his family, even if they're not in complete shape. Interfering with the past can change everything. Despite being erased following by the effects of the time ripples that would waver their present time.

Everyone motions to resupply their respective weapons, if they rely on gadgets, and others to refurnish their battle suits. Before throwing themselves into a mass conflict.