After burying explosives everywhere, the two quietly retreated from the central area and headed straight to the corridor leading to the upper area.

Soon, the two stood in front of a door.

Compared with the two large iron doors in the front, the door leading to the upper area is obviously much smaller.

It looks less than one person tall, and it seems that it can be pushed away with a little force.

But in fact, the two of them were thinking too much.

This door is indestructible.

The two laser daggers worked in turn and encountered some obstacles. Fortunately, they finally pried open the door lock with joint efforts.

Bang!

The door lock fell and the entire door opened effortlessly.

The only thing that caught my eye was a room, with a large screen hanging in front.

The scenes of the two people experiencing after breaking into the undersea research base are playing in a loop.

"What is this place? Strange..." Zhao Fei looked around and around.

Before Lu Yu could speak, a cough suddenly came from the room.

"Ahem... you two, it's really a good way to kill the people in my research institute as being really cruel and ruthless!"

Lu Yu looked at the sound and found that a radio-like device was installed on the wall on the left side of the screen.

Bang!

Without listening to his nonsense, Lu Yu shot the horn with one shot.

Lu Yu stared at the screen carefully and found that there was no picture of them burying explosives on it, which means that the person behind him did not have everything.

At least, he was not aware of this!

Of course, it doesn't matter if he knows it.

As long as the room is filled with explosives, the two of them will be done and can leave at any time.

At the same time, it is located in a secret room on the ground.

Looking at the screen in front of him that turned into snowflakes, a man's face was gloomy and dark.

"Ma, why do you meet these two fools? You don't play according to common sense..."

He rubbed his eyebrows with a headache, feeling helpless.

The technology department has been repairing since the surveillance was destroyed.

But strangely, after each repair is completed, it will automatically fail within two minutes.

It seems that there is a mysterious force that has been preventing the surveillance from restarting.

There was no way, he could only put the previous scenes on the screen to shock the two of them.

Can result...

He didn't want to birdie at all, so he gave him a big mouth with his backhand.

"Trough! Are the wastes from the mysterious 5th Bureau? The country raised them to make things difficult for me?"

The more I thought about it, the more angry this person became, and bang, smashed the computer in front of him with a punch.

After a few slowdowns, he immediately picked up the phone and called out.

"A big incident happened, and the Undersea Research Institute is very likely to be destroyed. Be prepared and bring important things with you to retreat quickly!"

At the same time, in the research institute, after Lu Yu and his wife placed explosives, they began to rush back.

The guards ahead were wave after wave, intense and intense.

The two of them shuttled through the rain of bullets and found a bunker, throwing smoke bombs while fighting back.

To return to the elevator, you must pass through the central and lower regions and walk the path you came.

But when they go back, they don't have to climb the pipes anymore.

"Zhao Fei, greet me."

Lu Yu shouted softly, and the bullets that came hit fell on the bulletproof vest.

Although it cannot cause damage, the powerful impact force still makes Lu Yu's body slightly stagnant.

As the smoke filled, Zhao Fei pulled the loop and threw it forward.

"Oh my god!"

Suddenly, Zhao Fei's face changed suddenly, and he jumped to the side and lay on the ground.

boom.

The grenade exploded, the corridor ahead was severely damaged, and the sea water poured in.

"Are you okay?"

Lu Yu rushed over and pulled Zhao Fei up and saw some blood on his body.

"It's okay, it seems like I've been shot in the arm!"

"Roar out!"

The two continued to advance along the smoke.

The water was surging, and more and more water was coming in the corridor.

Under the opening of grenades and smoke bombs, they rushed to the lower area frantically, with the elevator just ahead.

"Die!"

Throw down two grenades to block the pursuers behind.

The two of them jumped, jumped onto the elevator, closed the door, and activated the lifting device.

The elevator rushed up and rushed to the ground.

He calculated silently in his mind that after leaving enough safe distance, Lu Yu took out the remote control and pressed it down with a wicked smile.

The next second, loud noises came from below, and even they felt the earth shake in the elevator.

The explosives buried in the dark of the research room exploded one after another, and the power formed was like an eruption of an undersea volcano.

Ten thousand tons of sea water flooded the laboratory, and none of them could escape except Lu Yu and the others.

Most of them died of explosives, and the remaining ones left made the surging sea water rush to nowhere.

But within a few dozen seconds, this underwater research institute was completely destroyed.

Sinking to the bottom of the sea, it turns into a dead city.

The power caused by the explosion is not just that.

Soon, the sea water surged up and down the elevator shaft.

At this moment, there were at least dozens of meters before Lu Yu and the others arrived on the ground.

Boom! Wah!

The surging sound of the sea water coming from below made Lu Yu's face suddenly change.

"Let's go down!"

At this time, Zhao Fei was completely limp to the ground, and the shot in his arm made him lose a lot of blood, and he was gasping for breath.

I didn't feel it after the intense exercise just now, but now I suddenly stopped, and he felt a surge of tiredness and a blurred consciousness.

Below, the sea water rushed towards the elevator, and spread through the gap.

Thanks to the huge size and extremely strong elevator.

Otherwise, it may not be able to withstand the first round of impact from the seawater!

The elevator speed was still too slow after all, and the sea water poured in and quickly flooded the entire elevator space.

Zhao Fei rushed in the sea for a moment and then fell into a coma and lost consciousness.

At this time, the whole person was floating unconsciously in the water, as if an alien was soaking in a liquid tank.

Lu Yu took a deep breath in advance, and there was nothing serious at this time.

Through the perception of the water flow, he sneaked over and grabbed Zhao Fei and pulled him upstream.

The elevator stopped and was destroyed by the sea, so it was left to swim out by yourself.

When I reached the top of the elevator, I saw that the latter's face turned from red to purple. If I didn't escape in time, I would drown and choke to death.

Lu Yu pried his left arm upwards with force, opened the protective net, and pulled Zhao Fei into the elevator shaft.

Gugu.

Spit out a few breaths of air bubbles to allow the oxygen to be converted more fully.

With one hand, Lu Yu pulled his body and quickly moved upwards.
To be continued...