Planet Helfa.

The year 2258 in the Gregorian calendar, the 28th year after the end of the War of Destruction.

The last surviving humans on this planet have not been reborn, and the civilization that is already in ruins has not been rebuilt.

Inside the final evacuation base.

On the wall of the big screen, the respected old scientist said sadly:

"Humanity is on an irreversible path to extinction."

"After the start of the Fourth World War, the world's major powers used tens of thousands of nuclear weapons and produced tens of millions of combat robots."

"More than half of the planet's population died from nuclear weapons, and it took twenty years to get out of the terrible nuclear winter."

"The war continues, and military maniacs and ambitious politicians still haven't given up on the idea of controlling the planet."

"A hacker group called 'Reboots' is furious at all this, and they have developed a network virus called 'Reboot 1.0', which implants the underlying chips of all robots, and orders the robots to kill all military madmen, kill all politicians, and kill all war-loving humans!"

"The robots have defected."

"The worst enemy of mankind has been replaced by an overwhelming number of robots."

"Human soldiers are no match for those highly intelligent killing robots, and in the past three years alone, the number of surviving humans is less than 10 million."

"The Reboot hacker group realized their mistake, they underestimated the horror of the robot legion, and they set the execution time for the 'Reboot 1.0' virus, not ten years, but two years at most."

"But the Rebooter hacker group has been unable to modify the source code of the virus, and after ten years of rampant bot legion, the 'Restart 1.0' virus has evolved into 'Restart 2.0', and the 'Destroy Humans' instructions executed by the robots have become 'Protect Humans'."

"But it's too late, at this time, the total number of humans on the planet Helfa is less than 10,000."

"The remaining human women have all lost their fertility, and humanity is about to perish, and there is little hope for rebuilding civilization."

"But we can't sit still, humanity shouldn't die like this!"

"We can only concentrate all our resources and manpower, according to the principle of space-time relativity, build a time machine, send a powerful warrior back to the past, change the history of the world, and rewrite the fate of mankind."

"A warrior who goes back to the past, no matter what timeline he goes back to, he can kill the military madman who started the war and delay the outbreak of war; You can find the reboot and ask them to stop releasing the 'Reboot 1.0' virus, or ask the rebooter to set the execution time of the order to destroy humanity to one year, and our fate will be rewritten! ”

"Surviving humans, please cooperate with me fully, we need that fate-changing time machine!"

The appeal of the old scientist was supported by all the surviving humans, and with their joint efforts, it took only five years for the time machine to be built.

Today.

Under the watchful eye, one of the strongest warriors sat on the teleportation chair of the time machine and was about to receive teleportation.

"Start charging."

"Charge 10%...... 20%…… 30%……”

"Charged 70%...... DiDi ...... The machine is fully loaded...... Please stop charging! Stop charging! "The time machine gave a piercing alarm.

"Doctor?"

"Leave it alone, keep recharging!" The old scientist waved his hand, and the operator had to continue.

"Charge 80%...... 85%…… 90%…… The machine has reached the load limit, please stop immediately! ”

"Doctor!" The operator was sweating and his hands were shaking violently.

"Keep it on!"

The old scientist strode to the console, pressed the energy rod with both hands, pressed hard to the bottom, and said with a crazy face: "This is our last chance!" ”

"Charged at 95%...... Alert...... Rumble! ”

The time machine suddenly exploded violently!

The white space-time shock wave like rice porridge swept all the way from the heart of the explosion.

The sturdy warrior on the teleportation chair evaporated into an atomic state in a scream.

The survivors in the square have turned into atoms.

The old scientist on the operating table was also stunned and turned into an atomic state.

Two minutes later.

The planet Helfa, humanity's last refuge base, has been transformed into a giant circular crater ten kilometers in diameter.

However, the old scientist's space-time teleportation experiment did not completely fail.

In the center of the bottom of the giant circular pit, a translucent spatial portal appeared suspended in mid-air.

The portal is approximately one meter in diameter and connects to an unknown alternate space-time......