The movie already provided the answer to how Barry could regain his Speed Force.
By simulating the circumstances of Barry being struck by lightning that day and having lightning strike him again, Barry would have a certain probability of gaining the Speed Force.
For normal people, being struck by lightning is almost certain death; even if Barry succeeded once, he couldn't possibly succeed a second time.
Sometimes, any tiny change can lead to a completely different outcome.
But this is Flash Barry, the designated Flash of the DC Universe, the first generation holder of the Speed Force. There might be risks in him regaining his superpowers, but it would never be fatal.
And even if it were fatal…
Well, isn't there another Barry?
The other Barry possesses the Speed Force; he can briefly go back in time to prevent the Barry without the Speed Force from dying.
Though Kevin didn't think anything would go wrong.
Kevin didn't know much about the DC Universe, but through Flash-related movies, he always felt that the DC Universe subtly had a sense of 'fatalism'.
Who becomes what, and what abilities they will have in the future, are almost predetermined.
For example, Barry Allen will definitely become the Flash, and Bruce Wayne will definitely become Batman.
At least in most universes, this path is followed directly.
So, according to the above, if Barry Allen from the future really dies here, it means this is his destiny.
No matter how Dark Flash Barry in this world tries to save him, it won't succeed.
"But then, doesn't that mean Zod destroying this Earth is also a guaranteed success…?"
Kevin suddenly thought of this point again.
In The Flash movie, Barry and his other self went back in time countless times, trying to save Batman and Supergirl from dying, thereby stopping Zod.
However, no matter how many times they tried or how many times they went back, they ultimately couldn't save those two.
The Barry from the original world tried to give up and planned to go back, while Dark Flash Barry persevered and continued to try, not knowing how long he had rewound in the 'Time Bowl'.
Wrinkles appeared on his face, his hair turned gray, and his whole person became old, proving that Dark Flash had spent at least several decades in the Time Bowl.
Such a long time, so long that it even caused universes to start colliding and collapsing, yet they still didn't succeed.
Therefore, Kevin felt that perhaps the destruction of this universe was its destiny.
Since the rules of the DC Universe are arranged this way, can he really stop Zod?
"Um, Kevin? I'm ready!"
Kevin was still pondering about stopping Zod when he heard the prepared Barry calling out to him.
Looking up, Kevin saw that in the vast Batcave, Barry had already set up the laboratory scene from when he was struck by lightning.
He also prepared chains to attract lightning and a simple mechanism.
These were all made using Batman's various special equipment. Barry had been to the Batcave countless times, so he was familiar with the preparations. In just half a day, with the help of Kevin and Mera, everything was ready.
Now everything was set, just waiting for stormy weather.
However, in the sky right now…
It was a clear sky with not a cloud in sight.
Kevin knew that, according to the original timeline, the nearest stormy weather wouldn't arrive until at least tonight.
But… who made Kevin here?
Kevin couldn't create lightning, but he could create rain clouds.
Clouds in the sky are actually aggregates of water molecules; as long as enough water molecules gather, Kevin can create a large rain cloud.
The thicker the rain cloud accumulates, the easier it is to generate lightning.
However, to make a rain cloud generate lightning, Kevin would need to control water molecules more precisely.
Kevin had never performed such a large-scale precise control before, so it was very possible that he might not be able to create a thundercloud.
But it was worth a try either way; if it didn't work this time, he could just wait for a real thundercloud to arrive.
Conversely, if it succeeded this time, Kevin would master another attack method.
Create thunderclouds, and bring down lightning!
His controllable domain would expand, and he could even derive more attack methods from it!
"Alright, I'll reiterate one last time, doing this might put your life in danger. Once you don't gain the Speed Force and are struck by lightning, with the current technology on Earth, I'm afraid there's no way to rescue you."
Towards the end, Kevin still wanted to scare Barry.
But Barry showed no fear; he took a deep breath and repeated:
"I'm ready!"
"Very good."
Confirming Barry's determination, Kevin's body slowly floated into the sky.
After learning the Shape of water magic, Kevin had already mastered a way to fly at low altitudes.
By forming a thin and hard disk of water magic under his feet, lifting him into the sky, he could achieve flight in the air.
If he enveloped his entire body in water currents, Kevin could even fly at supersonic speeds in the sky!
This meant that the sky would no longer be an untouchable domain for Kevin in the future.
He could fly freely in the air like Homelander.
Though he didn't fly as fast as Homelander.
But it wasn't a big problem, after all, Homelander had already been sent to his grave by Kevin.
Kevin flew into the sky to create thunderclouds, while below, Mera was responsible for pulling the switch to draw down the lightning.
To ensure the lightning would definitely hit Barry, a lightning rod directly connected to the outside had to be attached to Barry.
And because the timing of Barry being struck by lightning had to be precise, a switch had to be set on the lightning rod.
Both the activation of the lightning and the opening of the switch needed someone to control them. Kevin needed to create the thundercloud, and Barry had to sit in the chair to be 'tortured'.
The task of opening the switch could only be given to Mera.
Everyone was ready. Five minutes after Kevin ascended into the sky, rain clouds began to accumulate above, and Barry could faintly hear the sound of thunder from above.
Kevin succeeded.
He successfully created a thundercloud.
Lightning flashed, thunder roared, and the originally bright sunny day turned into a cloudy 'night'.
The light from the lightning illuminated Barry's face.
Once he confirmed that the lightning had been absorbed by the lightning rod, Barry shouted to Mera:
"Do it, Ms. Mera!"
"…"
Mera, the tool, hesitated for a moment, then quickly pulled down the switch of the lightning rod.
The lightning followed the lightning rod, which had a Batman decoration at its tip, straight down. It passed through the chains, shattered all the potion bottles around Barry, and struck Barry's body along with the lightning itself.
Boom!!
The potion bottles shattered, and the colorful potions inside, along with glass shards, fell onto Barry's exposed skin.
The unknown potions, along with the lightning falling from above, began to erode Barry's skin; sparks and white smoke started to rise from his entire body.
"Ahhh!!!!"
Barry let out a painful howl, the sound echoing throughout the entire Batcave.
Being struck by lightning must have been terrible. When Barry was struck by lightning before, he instantly fainted and didn't experience that heart-wrenching pain.
But now, whether it was insufficient lightning power or something went wrong, Barry didn't faint; instead, he felt excruciating pain!
The lightning lingered on Barry for a while, and after a long time, burning a layer of his skin black, it finally stopped completely.
However, Barry did not regain his abilities; he lay on the chair, barely alive, as if on the verge of death.
"Hey! Are you okay?!"
Seeing this, Mera immediately asked. She wanted to rush forward to check on Barry, but Barry stopped her:
"Again… again…!"
"Land-dweller, you'll die."
"Again…!"
Barry's voice was weak, but his will was incredibly firm.
Even if he might die from the lightning strike, Barry was determined to regain his lost Speed Force!
Seeing Barry's resolute 'desire to die', Mera had no choice but to pull the switch again according to his will.
But perhaps the previous lightning strike had too much current, as the switch was damaged and unusable. No matter how Mera pulled it, it couldn't draw the lightning down.
"I'll do it."
At the critical moment, Kevin descended from the sky.
Once the thundercloud formed, it would continue to exist without Kevin needing to maintain it with his abilities.
And now, seeing Barry half-dead, Kevin knew this was a part of the original plot.
The first time Barry was struck by lightning, he didn't recover his abilities at all. Even the second time, when Supergirl took him into the clouds, he still couldn't recover his abilities.
It wasn't until he held hands with the other Barry, stimulated by the Speed Force, that Barry regained his abilities.
Now, after the first lightning strike, Barry was half-dead, just like in the movie plot.
Kevin would take over Supergirl's job and guide Barry to complete the second lightning strike.
And by his reckoning, Batman and the others should have already returned with Supergirl. If he timed it right, he could get the two Barrys to touch again, allowing Flash to regain the Speed Force.
Having decided what to do, Kevin picked up Barry and flew into the sky.
Boom!!
Thunder roared in the sky, and a pale light illuminated the Batcave.
Under this light, Kevin, carrying the battered Barry, descended from the sky and gently placed Barry on the ground.
"He failed…?"
Mera saw the unconscious Barry and asked Kevin.
Kevin shook his head:
"Not yet."
Saying that, he looked towards the entrance of the Batcave.
Kevin's timing was precise; as soon as he brought Barry down, the Flash of this world had already returned with Batman and the others.
Upon returning to the Batcave and seeing Barry lying on the ground, Dark Flash immediately exclaimed:
"Oh my god!! Brother, what happened to you!!!"
In a blink of an eye, he transformed into a blue electric light and ran to Barry's side, looking at him helplessly:
"You… you you you… what happened to you? Are you okay? Why is this happening? Hey, Aquaman, why is he like this?!"
"He wanted to regain his abilities to prepare for tomorrow's battle… Alright, stop rambling, Barry, go hold his hand, there might still be a chance to save him."
Kevin put on an expression of having everything under control, bluffing the Barry of this world.
Although he didn't know what happened, he still followed Kevin's instructions, touching the future Barry's hand with tears in his eyes.
The palms of the two Barrys touched, and small electric sparks flowed between their hands.
Kevin nodded slightly at the sight. If nothing went wrong, the future Barry's injuries would heal on their own, and he would regain the Speed Force.
Hmm…
If nothing went wrong.
"…Why… why isn't it working?"
Barry looked at the still unconscious future Barry, casting a pleading gaze at Kevin.
Seeing the future Barry, whose skin was still charred, Kevin was silent for a moment. In a blink, he flashed forward to the future Barry's side and checked his vital signs.
The good news was that the future Barry was still alive.
But the bad news was that his vital signs were extremely weak, and he hadn't regained the Speed Force at all!
When he realized this, even Kevin, who had experienced a lot, felt a bead of cold sweat trickle down his forehead.
He temporarily stabilized the future Barry's life, then opened his skill tree to check the skill points.
And when he saw the skill points that had increased by several points in an instant, Kevin's hanging heart finally died.
He could now confirm with absolute certainty.
Future Barry failed to regain the Speed Force.
Kevin had messed up.