It has been almost two days since Xiao Yun came to this world and started traveling, and he has finally found a place to settle down that satisfies him. This person's thoughts always change after seeing or discovering something better.

As long as you have the ability, you can keep running and taking action for better things.

Just like now, Xiao Yun and the others are about to start working hard for a better situation.

The reason why it is impossible to knock out a PM based on the existing conditions is not completely incomprehensible. Non-core categories can be easily produced, but when it comes to the core areas, once there are different technical routes or there are no corresponding materials, it is really difficult for a good cook to cook without rice.

After all, there is no such thing as magic in this world. If you want to develop combat capabilities as quickly as possible, you will need help from local people, which is something no one can avoid.

As a research institute, this place is obviously a bit over the standard, but as a factory, this place obviously still has great shortcomings. But even with various problems, at least the conditions in the living area are really good. After cleaning it up, at least everyone can have a good night's sleep.

Moreover, 90% of security issues can be handled by AI, so everyone can have a good rest and stay in the best condition.

After a good rest for a night, Xiao Yun woke up and appeared in front of the blocked entrance and exit that No. 1 mentioned.

The passage has completely collapsed, making it difficult to enter and exit. The reason for the collapse was that the subway, which was supposed to be on the track, ran off the track. Fortunately, after inspection, it was found that the collapse was only at the entrance and exit, so it was not particularly difficult to clean up.

With strength in numbers, it didn't take long for them to clear a passage large enough for two people to walk side by side. They also built a supporting structure using local materials. It wasn't very good, but it worked.

According to the underground transportation network diagram, humans have intricately built a huge underground palace beneath Mars, which is used for multiple purposes and uses, such as shelter, transportation, energy pipelines and water delivery.

It is hard to say how many of these underground networks are still usable, and the only way to find out is to investigate it yourself.

At this time, even Xiao Yun did not give up but joined the action. Only two people were left to watch the house while the others all started to move.

The situation underground was complicated, and the members of the operation were divided into three teams and set out in different directions to investigate the situation and look for refugees.

It took a long time to walk from the underground passage of the base camp to reach the first core hub. They didn't encounter any obstacles along the way. At most, there were some gravel in the underground passage, which did not cause any impact on them at all.

But when we arrived at this first underground transportation hub, the situation was different.

As soon as the team entered the underground transportation hub, they immediately felt something was wrong.

As an underground hub, it should have been well connected, but the lighting facilities are almost no longer intact. Only a few emergency lights are still emitting faint light, making the whole space gloomy.

The ground was covered with broken glass, concrete blocks and thick dust, and the creaking sound made by stepping on it echoed in the underground passage.

So people continue to move forward, but the process of moving forward becomes more and more difficult. When they encounter a place where half of the ceiling has collapsed and steel bars hang down like a spider web, blocking the way, they can only choose to crawl through.

Going further in, several subway cars ran out of the tracks and were piled up in a haphazard manner, and some cars were directly stuck into the wall.

Although this place has been abandoned for more than a year, there is still a burnt smell in the air. A closer look seems to show that there have been multiple explosions, and there are human skeletons and various relics everywhere.

"A massacre."

Suddenly a voice broke the silence in the communication channel.

Number One frowned: "Number Five, shut up."

"Oh."

Xiao Yun stopped and pointed ahead: "From here, split up and follow the previously assigned teams. The three teams will stay and search the area."

Number One originally wanted Xiao Yun to stay with his men, but since Xiao Yun had already made the arrangements, he could only follow Xiao Yun's instructions.

Xiao Yun casually pointed to one of the extended passages, nodded to everyone, and left with Mei One, No. 2, and No. 3. No. 1 also quickly took Mei Two, No. 4, and No. 5 to another direction, while the rest of the people began to search on the spot.

And those who stayed behind also had important things to do, which was to check and scan this core hub which was very important to their destination, to confirm whether they could completely clear it and make it unobstructed.

After all, it is obvious that the base camp is in need of supplies and materials, and there is a ready-made transportation channel underground. It is always better to clean up below than to risk being discovered by the Martian lizards on the ground.

This is a big project, a very big project. Regardless of whether they can accomplish this task alone, they must at least find a way to clear a road the size of a small box truck.

Above the underground transportation hub is the colony where the warships had been inserted like onions. Now Xiao Yun and his friends already know the name of this colony, Utopia.

This design is indeed quite utopian.

All three teams brought plenty of supplies. This operation obviously would not be completed in a day or two, but if they encountered obstacles and could not get through, they would naturally have to return with regret. The team that stayed would check the entire Utopia in more detail to see if they could find some surviving refugees.

The process on Xiao Yun's side was also relatively smooth. He didn't encounter any obstacles or troubles along the way. He didn't even see many of those golden beetle-like drones. Even if he encountered one on the road, he would just stay hidden and leave directly.

When the road gradually became difficult to pass from being smooth, Xiao Yun knew that he was about to reach his destination.

At this time, it had been more than fifteen hours since Xiao Yun and his team set out from the base camp, and except for resting, they had basically been traveling all the time.

"Boss, the station should be ahead." Number Two glanced at the prompt on the HUD and said, "Colonial Thebes."

Xiao Yun nodded and stopped, looking at the dark and deep passage ahead without feeling anything.

Anyway, even if the actual situation of this underground passage is really dark and nothing can be seen, it is still quite clear for Xiao Yun and the others.

"Rest for half an hour before setting off again. Try to set up camp and rest near the surface today."

Xiao Yun walked to the wall and sat down against it. Instead of taking off his helmet, he opened his mouth and bit the straw that popped out of the helmet to replenish water and nutrients.

Judging from the feedback from air analysis, the air condition here is very bad and there are even trace amounts of toxic substances. It seems that the air is not circulating at all. Ordinary people exposed to this environment will gradually suffocate to death within a short period of time.

Under normal circumstances, this also means that there is no air circulation here or the air circulation is very slight. No air circulation means that the road ahead is very likely to be blocked. However, neither Xiao Yun nor No. 2 and No. 3 took this matter to heart. The worst case scenario is that they would retreat and find the inspection entrance. But in any case, continuing to move forward is the most appropriate option at the moment.

Half an hour passed in a flash, and Xiao Yun stood up and led the three of them forward.

Soon they saw a place that was completely blocked by fallen rocks. Just as Xiao Yun had expected, it was blocked tightly. There was even a golden beetle crushed under the rubble and soil, with only its butt exposed.

The best situation now is that only a small part of the road here has collapsed, which means it has blocked a small area in front of them. Then Xiao Yun and his team can still move forward. If a long section of the road behind has completely collapsed, then Xiao Yun and his team can only return and take another route.

After the feedback from the phonon detection system appeared, Xiao Yun kicked the exposed butt of the big beetle. There was nothing displayed in the field of vision, which meant one thing: there was no way forward.

If there was a little feedback there would still be some hope, but in the current situation there is really no hope at all.

"Boss, we can't get through here."

"How's Number One doing?"

Xiao Yun turned around and looked around the top of the channel. He once again activated the phonon detection system but mainly aimed at the top of the channel.

After a while, No. 2 replied, "They are doing better than us. They have already arrived at the coastal colony of Missili."

Xiao Yun nodded: "Look for a nearby maintenance passage. If you can't find it, remember to remind me to go to the Earth in this world and report the Federation and the local company responsible for the construction."

Mei Yi carefully wrote this matter down.

"found it."

It didn't take long to find the maintenance passage, but it was on the side instead of the top, and was also covered by rubble. Only after the rubble was cleared away did the collapsed door of the maintenance passage appear.

With just one glance, Xiao Yun could tell that the maintenance passage was blocked because it was attacked. As for what the attack was, he could guess it without even thinking about it.

"Did they send drones to attack the entire underground transportation network? Should we say they are cautious or cruel and ruthless?"

Xiao Yun shook his head and motioned No. 2 to go and take a look. No. 2 tore open the twisted and collapsed iron door and crawled in through a gap. Not long after, he told Xiao Yun the news that he could pass through through the communication.

Soon Xiao Yun stood on the ground, and in front of him was a dilapidated city that looked like it had been plowed.

Xiao Yun was very interested in whether he could find anyone alive in this colony that had been bombed and then flattened. However, since he was already here, he naturally had to go inside and take a look.

The situation here is even worse than that of the Utopia where the battleship was inserted. There is almost no intact building to be seen. This is probably the difference between accidental injury and deliberate destruction.

Nothing was found after a simple examination. Xiao Yun didn't insist on getting a result. Besides, he had been out for such a long time, so it was obviously more important to rest quickly.

After finding a building that looked half decent to use as camp, Xiao Yun and his group began to take turns resting until everyone had recovered enough energy before continuing their exploration.

After searching the ruins of the colony for half a day and finding nothing, Xiao Yun led his men to move on to the next place.

The main purpose of this trip is to at least find some people who can understand the situation, at least to find out where they can get what they need now, and the time is five days.

If you can't find any clues after more than five days, then you won't gain anything no matter how much time you spend.

It is the second day now. We only need one day to rush back. If we move quickly in the remaining time, we can continue searching the two colonies along the route.

However, Xiao Yun's luck might be a little bad. He spent another day but still found nothing. He only found a few freight cars stuck in the middle of the road. There were a lot of messy things, all of which were civilian items. As for food, forget it because they were all spoiled.

Xiao Yun didn't gain anything, but the three teams that stayed behind finally found traces of humans. There were not many people, only about a dozen or so, and they immediately notified Xiao Yun.

This news made Xiao Yun stop moving forward and start to return to Utopia. However, No. 1 was tripped up by other things and could not return immediately.

When Xiao Yun returned to the underground of Utopia, he saw a group of survivors with almost no hope on their faces, wooden expressions and skinny bodies.

“Only these people were found?”

Number Eight nodded, "We only found them, and they were all the survivors from the surrounding colonies. I told them I was willing to give them shelter, but they needed to help us with whatever they could, and they agreed."

Xiao Yun asked: "Is there anyone who is good at technology?"

Number 8 said, "Yes, half of them used to work in technical positions. Even if they can't play a big role, they are enough to help us. The key is that they also asked where the nuclear materials we want can be found."

"That's good." Xiao Yun nodded, and glanced at the group of people who seemed hopeful but also desperate: "Take them back first, and we'll find a way to get food later."

The daily food supply for more than a dozen people is not a small amount, and the existing supplies alone will certainly not last for too long. The places where food can be found nearby must have been looted by various survivors, so it is not an easy task to feed these people.

There was really no other way, Xiao Yun had already thought about what to do. As long as he could solve the combat effectiveness problem as soon as possible, he would just go to the Jupiter Lizard to rob them. The supplies in any warship would be enough for these people to use for a long time.

On the way back, Xiao Yun and his companions distributed all the food they had with them to the survivors, and slowly led them towards their destination.

Suddenly, number two came running over: "Boss, number one found something."

Xiao Yun directly opened the latest news and saw a picture. The picture showed a warship and according to the information feedback from No. 1, it was still an intact warship.