On January 1, 2022, doomsday came to the earth, and the whole world would be exterminated.
Jack was accidentally reborn three months ago.
Knowing that the end of the world was coming, he immediately began to build a refuge.
He also activated the Doomsday Survival System, which could help him constantly upgrade his refuge.
The bulky iron door had been upgraded to a titanium alloy fire-resistant insulated door!
The brick concrete walls had been upgraded to special space metal walls!
The power system, pipeline system, material storage system, and active defense system had all been upgraded.
Jack's refuge was as complete and elaborate as a space station!
When the other survivors were still struggling to survive in the ruins of the apocalypse, they suddenly saw a huge refuge.

When Doomsday Comes, I Can Upgrade My Refuge Infinitely

"It's the doomsday. You guys need to pay more attention to your safety. You can just ignore the mess things. It's not good for us to hurt them."


Jack taught them a lesson mercilessly. It was obvious that the mercenaries did it without his permission before they did it.


This didn't seem to be the discipline of a mercenary regiment.


"I hope you can keep your previous strict discipline. Don't be so lazy!" Jack said.


"Okay, boss. We haven't received the training from the beautiful instructors yet, have we?"


"After all of us have been trained for one round, we will definitely become an outstanding mercenary regiment." Lorelle looked very flattering. He was trying his best to please Jack, which looked ridiculous.


It would take at least 13 days to get to Mount Whitney. During this period, no one on the ark could let their guard down.


Chapter 142 The Pestilence Broke out. Jack Made a Decision