As the sky began to darken, the staff of the institute finished their day's work and left the institute one after another. Delicious meals were prepared for the soldiers of the guard company and the commandos in the canteen of the institute and delivered to the various posts.

Li Dongsheng has been sitting in the monitoring room, watching the monitoring screen inside and outside the station with the staff on duty. Li Dongsheng seemed to feel that something was wrong in his heart, he thought about it for a while, picked up the phone on the table in the monitoring room, and made a call to the local traffic management department to ask about the situation after the car accident just now.

The traffic management department replied that the accident was being dealt with, and from the on-site analysis, the truck of your institute should avoid the vehicle going straight on the road, so the truck driver should be fully responsible for the accident. The two injured have been taken to the hospital, and after examination, there is no serious problem, except for a slight abrasion on the head, and after a simple bandage, the injured have left the hospital on their own.

After listening to the introduction of the traffic police department, Li Dongsheng was stunned for a moment. He is not worried about who is responsible, the focus is on whether the accident is abnormal. He remembers that when the porter and the truck driver lifted the two injured people out of the jeep, the other party was covered with blood, as if he was seriously injured, and how to go to the hospital for examination was only a slight bruise. But the whole crash process didn't find anything big wrong.

Li Dongsheng shook his head vigorously, glanced at the clock on the wall, and found that it was almost twelve o'clock at night, he leaned back in his chair and slowly closed his eyes.

2 o'clock in the evening. Wan Lin was sitting cross-legged on the roof of the building and closed his eyes to breathe, when he suddenly heard a "humming" sound of a car motor from far and near. Wan Lin opened his eyes vigilantly, at this time Xiaohua was already lying on the edge of the roof facing the gate, looking at the direction of the gate, Wan Lin lowered his body and hurriedly followed.

A jeep with headlights on drove quickly from a distance, swaying left and right on the road as if drunk, and when it was about to reach the gate of the institute, the jeep suddenly shook and rushed towards the two wrought iron gates of the institute.

"There is a situation!" Wan Lin shouted into the microphone in his ear, took out his sniper rifle and lay down beside Xiaohua, and with a "bang" he loaded the bullet and aimed it at the rushing car.

The car stopped in the middle of the gate, the front face of the car was deeply dented, the front windshield was shattered, and streams of white water vapor emerged from the broken lid, and the ground was sprinkled with pools of black engine oil......

The two security guards standing at the gate had already screamed and ran away when the car rushed away. Hearing the exclamations and loud crashes of the security guards at the gate, four security guards suddenly jumped out of the gatehouse next to the gate, and quickly approached the jeep parked in the middle of the gate.

"Stand back!" In the walkie-talkie hanging on the shoulder of the security guard, Li Dongsheng's stern shout suddenly sounded, and several security guards stepped back in response.

A huge flame suddenly rose from the inside of the car, followed by a loud "boom" from the chassis of the car.

The car burst into a huge flame, jumped up and smashed into the gatehouse of the research institute, and a loud "bang" smashed the front face of the gatehouse, and the car was fiercely embedded into the gatehouse. Several security guards were blown up by the sudden explosion wave, and their feet were blown more than ten meters off the ground, and they fell heavily to the ground. The scene was filled with fire, smoke and dust.

Wan Lin was lying on the roof of the building, watching the car roar towards the gate, and at the moment when the car collided with the gate, he vaguely saw a figure rolling down from the speeding car, and disappeared in a blink of an eye.

"Good skills!" Wan Lin admired, the other party's movements were too fast. Being able to roll off a car at a speed of seventy or eighty kilometers per hour and disappear quickly is by no means something that ordinary military personnel can do. While reporting the situation to Li Dongsheng, he watched closely in the direction where the black shadow disappeared just now.

Just when everyone's attention was focused on the car that exploded at the entrance of the research institute, a ball of fire suddenly shot out from the six-story building under construction opposite the research institute, and "boom", a rocket sprayed flames and flew towards the window of the real yàn room in the center of the third floor of the research institute.

Xiaohua, who was lying on the roof of the building, was the first to notice the firelight on the opposite side, and roared at Wan Lin, who hurriedly moved his sniper rifle to aim at the opposite side.

"Boom", the rocket accurately hit the window of the real room, blowing the window frame in all directions. The explosion shook the building violently. The flames of the explosion brightened the night sky.

With the help of a short explosion and fire, Wan Lin, who was lying on the roof of the building, suddenly saw a figure carrying a shoulder launch canister on the top of the 6th floor opposite through the sniper scope, and Wan Lin decisively pulled the trigger. The gunshots rang out almost in tandem with the explosions of the third-floor windows. "Bah", the figure on the opposite side fell backwards with the sound of gunfire.

The fire was extinguished in an instant, and after Wan Lin finished firing a shot, he immediately turned his gun to the gate, looking for the figure who had just rolled off the car. However, he patrolled the floor with his gun pointed downwards and found no target, except for a few security guards who had escaped from the building, guarding the doorway who had been injured by the explosion of the car.

Wan Lin whispered into the microphone in his ear: "Leopard head, I'm going down", pulled up the safety rope tied to the roof of the building in advance and slid downstairs, Xiaohua lay on Wan Lin's shoulder tightly, and his two eyes flashed blue light in the dark.

At this time, after Li Dongsheng heard Wan Lin's alarm, he was sitting in front of a row of display screens in the monitoring room on the first floor of the real yàn building, checking the monitoring pictures in all directions. The car accident at the gate just now and the explosion at the window of the real yàn room on the third floor made him understand that the real purpose of the other party was the real yàn room in the center of the third floor. He instructed the soldiers of the guard platoon to pay close attention to movements around the building.

In the center of the real yàn room on the third floor, Wei Chao and Wang Hong guarded the elevator entrance and evacuation staircase of the stairs with guns respectively, and Zhang Wa stood on the side of the open door of the real yàn room; Lingling squatted on the ground and stared at the screen of the electronic countermeasure box, carefully checking the surveillance footage in the building. The ceiling lights on the top of the corridor have all been turned on, and the milky white light shines in the corridor, which seems very quiet.

After not being able to enter the real yàn room in the afternoon, Li Dongsheng asked Director Zhang of the security department to give several members of their commando team safety certification, so that they could enter the real yàn room to protect the green stone in case of an emergency.

When the window on the third floor was attacked by rockets just now, Wei Chao ordered Zhang Wa to enter the real room to check the damage to the windows, and the thick lead plate in the room resisted the attack of most of the rocket fragments, but the lead plate that was hit was more than ten centimeters thick under the explosive impact of the powerful anti-tank rocket, and it was deformed under the explosive impact of the powerful anti-tank rocket, and it broke away from the original lead plate opening and closing track, and hung on the track crookedly, revealing most of the space that went straight to the window.

The large safe where the hazardous materials were placed still stood quietly by the wall of the central room, undamaged.