Bai Dalin had no time to grind anymore, and white pillars of smoke continued to rise under the ground, increasing in number, and the soldiers of the Sharp Knife Squad and Wu Mian were exhausted.

Wu Mian knew that after the surface flame was suppressed, the bottom was in a relatively closed state, and a large amount of heat was still accumulated.

In the absence of oxygen, this heat is sufficient to pyrolyze the vegetation underneath, which is manifested in the production of a large amount of smoke, as well as a lot of hydrocarbon gas.

This is one of the reasons why wildfires are so hard to extinguish.

In addition, in the past ten years, the mountains have been closed for afforestation, and the ecology is indeed much better, and the old forests are inaccessible, and many of the fallen branches and fallen leaves have not rotted in time and become flammable materials while being turned into fertilizer.

Suddenly, Wu Mian felt that something was wrong.

"The direction of the wind has changed!" Bai Dalin's voice changed tone, and he roared with infinite fear.

To fight a wildfire, the most feared thing is the change in wind direction.

The firefighting knife squad will always be in the limelight on the mountain fire, so that the fire spreads downward, and they are always above the flames.

However, the terrain in the mountainous areas is complex, the convection is obvious and unpredictable, and the wind direction can change at any time for a small reason.

Once the wind turns, it means a high probability - sacrifice.

"Withdraw!" Captain Li judged the situation, made a gesture for the first time, and roared angrily. The others quickly packed their bags, and everyone was smoky, similar to the monkeys who had just run out of the alchemy furnace of Taishang Laojun.

"Call headquarters, call headquarters!" Captain Li shouted to headquarters as he retreated.

"Headquarters received. "The voice of the headquarters came from the satellite phone, intermittently, and the signal was still a little problematic.

"There are too many embers on the hill where the 5th squad is located, we are ready to retreat, ask for support from the water bomb 5, ask for the water bomb 5 support!"

There was a rustling sound, but there was no reply on the other side of the phone, and I don't know if Captain Li's message for help had been received.

While retreating in a hurry, Captain Li roared loudly. The voice is hoarse, with all his might.

However, the satellite phone signal was intermittent, and no one was sure whether the headquarters had received the information from the front in time.

Wu Mian squinted his eyes and looked around, it should be that with the arrival of the day, the temperature has risen, and the water sprinkled by the water bomb 5 and Kunpeng AG-600 has evaporated over time, and the mountain fire below has begun to rekindle.

"HQ received!"

At the most critical moment, the voice of the operator came from Captain Li's satellite phone. Everyone breathed a sigh of relief, and if the paralyzed ones broke the line at this time, it would be fucked.

The simple thing is that science and technology are becoming more and more developed, and you can also contact the outside world in the deep mountains and old forests.

"Hold on for 10 minutes!" Captain Li habitually yelled at the satellite phone twice before hanging up and said to the team members.

No one spoke, everyone hurried away.

"This side!" Wu Mian said, pointing in a direction that was not the way he came.

Captain Li was stunned for a moment, but he didn't ask why.

Habitually performing their own duties, their duty is to extinguish the fire, and to take the whole team back alive. And Wu Mian is the guide, as long as he still has his senses, the path he points to at this time must be correct.

Changing direction in an instant, the team moved forward quickly, and Wu Mian added, "The map marks that there is a stream on that side. I didn't see it just now, but I guess it evaporated. But there was a waterhole on the hill to the north of the creek, and I could see the reflected sunlight. ”

Water source may be the best choice at this time.

If you stick to it...... No one is sure to survive. But if you guard the water source and wait for the water to blast 5 to sprinkle water, the fire should not be so big, and the water source will be boiled and evaporated in an instant.

After more than ten hours of climbing mountains and extinguishing fires, the entire team was exhausted. Wu Mian walked quickly to Captain Li's side and grabbed the wind-powered fire extinguisher.

"No ......"

"I didn't work much, I was young. Wu Mian explained simply, without saying anything, and carried the wind-powered fire extinguisher on his shoulder.

28.35KG, heavier than the lead coat, but Wu Mian has adapted.

This thing doesn't work much on the back, and the wind-powered fire extinguisher mainly deals with open flames, not the dark fire situation that is now facing.

So the team only carried a "hair dryer" on their backs, which was too heavy.

"Ahem, cough, cough~"

Someone started coughing.

The smoke became thicker and denser, as if it had been arranged a long time ago, and the smoke was everywhere, as if it was an enchantment, besieging the entire sharp knife squad in it.

The team members invariably took out the towels covered with ashes on their waists, wet them with the water they were reluctant to drink in the kettle, and covered their mouths and noses.

Wu Mian's movements were slightly slow, and a towel was handed over.

"Dr. Wu, yours. Bai Dalin handed his towel to Wu Mian and grinned habitually. His face was all black and gray, and his snow-white teeth looked a little dazzling.

"Dr. Wu, you're in the middle of the line. Captain Li said one last word, immediately covered his mouth and nose with a towel, and stopped talking. Bai Dalin dragged Wu Mian's towel down and wet it with water.

Wu Mian knew that he was the "masses".

As long as he rushes in with the sharp knife squad, his identity is no longer the pride of the sky, he is no longer a doctor, and he is not even a guide when he encounters danger, but just a "crowd".

The unspoken rules of firefighters are the safety of life > the safety of firefighters > property.

Wu Mian was not reckless, although he had heard a lot of relevant things, but he had no practical experience, and he was not even as good as an intern. At this time, the biggest contribution I can make is what Captain Li says, and I will do whatever I do, and I will definitely not cause chaos.

But no matter how fast this tired squad of sharp knives moved, it was always faster than the speed of fireworks.

Less than 300 meters, Wu Mian couldn't even see the figure of the team member 1 meter away in front of him, so he could only close his eyes and follow the footsteps of the firefighters in front of him quickly.

The wet towel covering his mouth and nose blocked the smoke and blocked a large amount of oxygen, Wu Mian felt that his body was getting more and more tired, and he had begun to have symptoms of hypoxia.

But the water source should still be a few hundred meters away, and a small hill needs to be climbed.

Wu Mian regretted it, he was still too careless, and he believed in his eyes too much. It's a testament to the confidence of countless successful surgeries, but now that I think about it, I just had to take a look at it myself, and at least I could know more about it.

It's really not as good as an intern, Wu Mian took a hard breath to ensure that his body supplied oxygen. I don't have time to think about this, I hope that when the open fire burns, I can rush to the water source, I hope that the water bombardment 5 will arrive in time, and I hope that ...... I can live.

The sound of footsteps is gradually messy, lack of oxygen, heat, exhaustion, lack of water, everything is deadly. When they came together, they became a glittering dagger against everyone's neck.