After Zhang Kai gave the order, the soldiers in charge of containing the polluters began to retreat, shooting as they retreated, throwing several grenades, and the sound of explosions and gunfire came and went, and they never stopped from the beginning to the present.

But the number of polluters in the back was too much, almost not reduced, everyone abandoned the car and retreated, and the people in the first few cars entered the experimental base one after another, but before all the people entered, there were screams from the rear, and several soldiers were drowned by the murderous and bloodthirsty polluters.

Zhang Kai and a few soldiers were the first to enter the metal gate, as well as the waiting academician who was surrounded in the middle, and as soon as they entered, they immediately ran towards Building No. 3.

In order to speed up, Zhang Kai directly carried the academician on his back, and ran in front of the front, and the soldiers behind also followed one after another, leaving a few soldiers at the door to be in charge of the back of the hall, constantly shooting at the polluters who were squeezing in, helping the people in front to buy time.

At first, it was okay, the metal gate only opened a small gap, and there were not many polluters squeezing in, and a few soldiers could barely hold it, but when a few special polluters entered, the situation immediately reversed, and the bullets failed to kill them directly, and it didn't take long for two soldiers to die.

There were too many polluters outside the metal door, crowded together, and they all rushed forward, and soon pushed the heavy metal door open, and in an instant, a large number of polluters were able to pour in, directly engulfing the soldiers behind the pads, and the gunfire stopped.

Zhou Yunfeng and the others stood at the top of Building No. 2, nervously watching the situation at the gate.

At this moment, Zhou Yunfeng's brows were furrowed, even Lu Xing's face was not very good-looking, and Wang Cheng was already extremely frightened, what they were most worried about had happened, so many polluters poured in, it was an unimaginable disaster.

Once surrounded by those polluters, there is no chance that they will be spared, unless they are equipped with wings and can fly away, but this is obviously impossible, they are just mortals......

Zhang Kai carried Academician Hou on his back, and a few soldiers at the beginning were the first to arrive under Building No. 3, followed by more than forty soldiers, and the soldiers who had not yet entered at this time were already doomed, and they could not be spared under the pursuit of so many polluters.

Zhang Kai pushed open the glass door and rushed straight in, and several soldiers used searchlights to illuminate it.

"Hurry up and keep up with the people in the back!" Zhang Kai shouted back at the door, then turned and ran towards the stairs leading to the second floor.

The polluters were in hot pursuit, unable to shake them off, and soon broke the glass door and entered the building with the last few soldiers, and the latter also swarmed in.

Seeing that the military personnel entered Building No. 3, Wang Cheng breathed a sigh of relief, if they entered Building No. 2, it would be miserable.

"They're already in Building 3, and if nothing else, they're going to come out of the sixth-story bridge and come to us, so we've got to do something about it as soon as possible!" Seeing a large number of polluters following the military into Building 3, Zhou Yunfeng had already guessed what would happen next.

As soon as they run from the flyover to Building 2, the polluters will inevitably follow, and they will suffer at that time, and they must not continue to stand here and watch at this moment.

"Brother Zhou, Brother Lu, what should we do now, if those polluters come over, wouldn't it be very dangerous for us!" Wang Cheng had a panicked expression on his face, and he couldn't help but feel a little scared when he thought of so many polluters running over.

"If their commander was smart, they would definitely blow up the flyover when they came, so that those polluters wouldn't be able to pass, I'm afraid they didn't choose to do this, we need to remind them!" Lu Xing's eyes were always staring at the overpass below, and he said calmly.

"Then let's go down at once and go to the overpass to warn them!" Zhou Yunfeng thought about it, blowing up the flyover was indeed the only way, so as to stop the polluters from running over.

"I'll go alone, you go back to the seventh floor first, block the upstairs as much as possible, once there is an accident, we can also buy a little time, I just reminded them in the past, whether to bomb or not we can't decide, and then I will rush back immediately, it depends on how they choose!" Lu Xing said.

Whether to blow up the flyover or not, everything is the decision of those military personnel, Lu Xing went over just to remind him, he knew very well in his heart that he had no ability to name them, nor did he have the ability to blow up the bridge, and the rest depended on how the other party chosen.

However, he still has a great deal of confidence in his heart, as long as their commander is not a fool, he will definitely not choose not to blow up the bridge, and he reminded him in the past just in case, worried that those people would run away in a hurry and forget the solution to the problem of blowing up the overpass.

"Good! Let's split up! When Zhou Yunfeng heard this, he nodded in agreement without any hesitation.

Then, Lu Xing immediately turned around and ran downstairs, and Zhou Yunfeng and Wang Cheng immediately returned to the seventh floor as fast as possible, quickly moved things, and blocked the entrance, of course, they would not be completely blocked, and they had to leave some space for Lu Xing to come back.

As for what will happen to those military personnel, they can't control so much, and if it weren't for those people who brought in polluters, there would not be such a dangerous situation, Zhou Yunfeng is not a good person, it is impossible to joke with his own life, and he must be ruthless when he should be ruthless.

Lu Xing rushed to the sixth floor as fast as he could, standing at one end of the rooftop, his eyes fixed on the entrance directly opposite, waiting for those people to arrive, he didn't want those people from the military to arrive too quickly, the longer the better, so that Zhou Yunfeng could have enough time.

After waiting for about three minutes at one end of the overpass, the gate directly opposite was finally pushed open, and what appeared in Lu Xing's sight was Zhang Kai, who was carrying an academician, and several soldiers.

Lu Xing was more concerned about the academician, and when he was just observing above, he noticed that he, an old man in his fifties, was protected at the forefront, and he must be an important person.

But now is not the time to think about this, Lu Xing saw a few of them, and immediately shouted loudly: "Come here and blow up the overpass, otherwise we will all die here!" ”

After Zhang Kai appeared, he also saw Lu Xing for the first time, and he was a little surprised, he didn't expect that there were still people here, but he didn't have time to think about anything, and continued to run forward until he heard Lu Xing's words.

Lu Xing repeated the sentence just now, and no matter what the other party thought, he turned around and left directly, and ran to the seventh floor, what will happen after that, it is not something he can control, the words have been reminded, and there is no need to keep it.

Zhang Kai originally wanted to say something to Lu Xing, but he didn't expect him to run so fast.

After arriving at Building No. 2, Zhang Kai turned his head, glanced at the rear, and then ordered a few soldiers beside him: "Take out the explosives and grenades on your bodies, and be ready to blow up the flyover at any time, move quickly!" ”

"Yes!" When several soldiers received the order, they immediately answered loudly, and then took out the explosives bag they were carrying, placed it in a suitable position at one end of the overpass, and were ready to blow up the bridge at any time depending on the situation, and the grenade was made up in case the power was not enough.

The soldiers in the back appeared one after another, quickly running across the overpass, and a few soldiers in the back fired from time to time to buy time for those in front, who knew what it meant to stay at the rear, but did not flinch.

When most of the soldiers arrived, the polluters had already appeared at the end of the flyover, and were crowding towards Building 2, and seeing this, the soldiers who had placed the explosives realized that they could not delay any longer at this moment, and immediately detonated the explosives.

The next moment, several loud bangs were heard, and the bomb was detonated, and the huge force of the explosion directly blew off the part that supported the overpass, shattering it along with the nearby stones.

In an instant, there was a gap at this end of the overpass of Building No. 2, and there was no support point, and the overpass swung downward under the action of gravity, and then the other end of the overpass could not bear the weight and broke completely, and then the overpass fell downward.

Some of the polluters who were still on the flyover also fell downwards and smashed to the ground with a loud bang.

Although the overpass is gone, the polluters are still appearing one after another, they have no intelligence, and when they see someone on the other side, they only know that they are rushing forward, completely unaware that they will fall from a high altitude.

Soon, a dramatic scene unfolded, one after another, polluters rushed out one after another, jumping directly from the six-storey building, as if committing mass suicide, the scene was very shocking.

Falling from a height of 20 meters, ordinary people will be paralyzed if they do not die, but the situation of polluters will not be so serious, their skin is rough and thick, and their bones are relatively hard, and even if they fall, most of them do not die, many are just broken bones.

Even, the polluters who fell at the beginning became meat pads, and the ones that fell after that were not affected much, and as for the few special polluters, they fell as if they were fine, their body structure was too strong, and this height was obviously not enough.

If it falls at a height of 70 or 80 meters, most of the polluters will die, but at the current altitude, it does not have a very good effect, and it only has an effect on some ordinary polluters.

At this time, Lu Xing had already reached the seventh floor, and after hearing those explosions just now, he was a little relieved, as long as the bridge was blown up, the polluters would not be able to pass. And they don't have the wisdom to come up from under Building 2, so they can be said to be safe for the time being.

It's safe for now, but the threat is there, and as long as the polluters don't die for a day, it's a curse for them.

When Lu Xing joined Zhou Yunfeng and Wang Cheng, they had already stopped moving things to block the entrance, because there was no need for this, as long as those polluters couldn't come, there would be no danger for the time being......