Xiao Liu, an auditory ability on duty at the toll station, exploded his scalp in an instant, stood up suddenly, and the hairs on his body stood upside down, listening attentively. ...

The people around shook for a moment.

reacted suddenly, and stared at Xiao Liu nervously.

What's coming?

The more he listened, the more sweat on his forehead became, and his heart pounded like a "thump", almost jumping out of his throat.

Quickly climb the high ladder on the side of the toll booth.

Use your night vision goggles to look at where the sound is coming from.

Uneven, large and small...... Sticking to the ground, it can easily climb over any obstacle it encounters.

A long, wide, black patch is rapidly approaching their base!

How can it be so fast?!

Xiao Liu's eyes widened, and he turned his head and shouted hoarsely, "Ring the alarm quickly!" Fast!!! ”

Damn?!

Others were taken aback.

One of the guards sprang back into the tent and slapped the red button on a device with a single palm.

Everyone was nervous.

Xiao Liu looked at the darkness that was used like a tide, and swallowed his saliva unconsciously.

They—

Here it comes!

Meanwhile.

In the quiet of the base.

"Uh......h Woo......"

A loud whistle rang out abruptly over the base, waking everyone in their sleep!

Everyone sat up from the bed suddenly, and the chaotic brain was instantly awake, the heart was racing, and the hands and feet were cold.

Once at the new base, they made some changes to the city-wide alarm.

The sound of the whistle is no longer singular.

It can be played in different regions, and even the urgency of the situation can be distinguished by different durations, time intervals, rates, tones, etc.

There are three levels, yellow, orange, and red.

At this time, it is the red alarm that rings in the ears.

The highest level of alerts!

Ye Xuan and Ning Jiuli had already run downstairs in an orderly manner with all the team members at this time.

Ye Xuan waved his hand and released more than a dozen military trucks, and the team members got on the bus in turn, and in less than three minutes, the convoy drove towards the gate.

On the way, Ning Jiuli connected to the communication of Zheng Peng, who had been on duty.

"Immediately send the order down, let the guards withdraw to the gate immediately, and everything will go according to plan."

"Yes!"

When Xiao Liu's people received the notice, they didn't dare to delay for a second, and immediately activated all the traps set up, then got in the car and drove towards the city gate.

Zheng Peng's side has also activated the city wall and the power grid above the base.

Twenty minutes later, the first mutant spider probed left and right, and immediately got off the highway and walked to the toll booth deep in the fork in the road.

Then the second, the third......

Countless mutant creatures followed the dense array of mutant spiders to crawl through the barricades at the toll booth and rush towards the base.

At the same time, there are also flocks of mutant zombie birds attacking the base from high altitudes.

The drone only captured a small amount of the impact, and the rest was captured by surveillance cameras and broadcast to the command room inside the base wall.

Ning Jiuli turned around.

Looking at everyone waiting in front of him, he said in a deep voice, "Are you all ready?" ”

"Ready!"

"Now the lives of everyone in the entire base are tied to us, and there must be no mistakes! Let's go! ”

"Yes!"

Everyone ran out.

But there was a sentence behind him: "Give me back alive!" ”

Everyone didn't listen to their footsteps, but their eyes instantly moistened.

These comrades-in-arms around me, I don't know, will this be the last face they can see?!

Ning Jiuli and Ye Xuan stayed at the end, and before they walked out, they patted Yan Yu on the shoulder, "I'll leave it to you!" ”

Yan Yu nodded heavily, "Don't worry!" ”

The two strode out the door, and at the door, he hugged her, kissed her deeply, then put his arm on her shoulder, and said, "Protect yourself!" ”

Ye Xuan's nose was sour, and his voice was a little choked, "Okay, you too!" ”

Ning Jiuli didn't look back at the wetness in his eyes, and said solemnly: "After the war, marry me, okay?" ”

"Good!" Ye Xuan's eyes are reluctant, perseverance, and determination to win!

The two nodded, turned around, and jumped up the city wall one by one!

Yan Yu sighed!

～

At this point, the tide of mutated creatures has stepped into the first trap.

The trap is, screening.

Fifty meters from the toll booth.

Suddenly, two iron railings two or three meters high were erected.

The huge mutant python and the multi-legged mutant centipede climbed over smoothly, only the mutant spiders, mutant scorpions, and mutant hyenas...... He stumbled and rolled forward.

At this moment, the road in front of the railing, which was originally flat, sank down and became a chasm.

The mutated creatures gurgled and rolled underneath.

The bottom of the ditch is five meters vertical above the ground, and they have short legs and cannot climb up, so they can only persevere and desperately hit the ground that stands in the way.

The speed slowed down in an instant.

"Fire oil bomb launch!" Ning Jiuli gave an order.

The front-row power guards on the walls fired the oil bombs towards the chasm.

"Woo——!oo

"Boom, boom, boom——!"

"Roar—squeak—"

The sound of the detonation and burning of the fire bomb and the screams of mutated creatures came and went, as if they were ringing in my ears.

The hearts of the people trembled, but they still persevered.

"Zila-tweet——!"

The flock of mutant birds in the air slammed into the power grid with a deafening sound and a pungent smell of burning......