A nation's industrial development begins with junior engineers.

Daozi looked at Er Gou.

Er Gou nodded affirmatively: "According to intelligence, the things we lost were locked in a safe by the Russians, but there are two safes, and we are not sure which one it is."

"Moreover, the safe has a double-layered structure; the first layer is directly connected to the carriage, making it extremely difficult to open!"

Jiangxia finally finished kneading the dough.

While listening to Er Gou's introduction, he took out a silver-white metal lump from his bag and then opened an unused heating pack.

Pour out the iron powder from the heating pack and sprinkle it evenly on the dough that has been stretched into strips.

The oxide layer on the surface of the metal lump is gently scraped off, and powder is scraped off with a knife and mixed in.

He climbed under the metal bunk bed and dug out some red rust. He repeated the same action once more.

Finally, take out two small pillars, wipe the outside clean with coarse cloth gloves, and insert them into the dough.

After thinking about it for a while, I took out some more white sugar and added it in.

"All right!"

Jiang Xia clapped his hands, looked at the two lumps that resembled small cakes with candles stuck in them, and nodded in satisfaction.

"Uh~~"

"While we're all happy to get the K3 back in operation, isn't it a bit too early to celebrate? Besides, you even added iron powder? Is that even edible?"

Er Gou felt sorry for Bai Tang and really wanted to follow his captain's example and get off Jiang Xia's big bag.

Jiang Xia ignored him and urged repeatedly, "Hurry up, you guys know how to climb a train, right? Roll this thing into a strip and stick it to the two places I just pointed out. Then light this stick on fire. It'll be a problem if it oxidizes later."

"Matches are hard to light. Go get some charcoal from the front of the car, light it, and then stay far away!"

Daozi paused for a moment, then met Jiang Xia's calm gaze: "Okay, comrade, I believe you!"

As he spoke, he pointed the knife at Er Gou, and the two of them each picked up their respective lumps of food and climbed out of the window.

squeak~~~

The train braked briefly, and sparks flew as the wheels rubbed against the rails.

However, the last two trailers emitted particularly large sparks.

"Comrades, the next stop is Erenhot Station. Please prepare to disembark..."

We're finally arriving at our destination!

As the mission neared its end, Jiang Xia stretched, feeling utterly exhausted!

Just as Jiang Xia was sighing, two figures, each carrying a box, climbed in through the window.

Although they were all in a sorry state, especially Er Gou, whose once neat buzz cut was now half bald, and whose face was covered in charred soot, Er Gou was in a disheveled state.

Ignoring his own appearance, Er Gou looked at Jiang Xia with a shocked expression.

"Dude, what is that? That's way too powerful!"

"Thermite, wow, isn't that amazing!"

"Wow, that's amazing! Luckily you dodged quickly, or you'd be headless!"

"Tsk, didn't I tell you to stay away?"

Er Gou said confidently, "I didn't believe you at first!"

Jiangxia is speechless with anger. What you said makes so much sense; I have no reply.

As he spoke, Er Gou's eyes darted around, and he took out a lighter and flicked it twice at Jiang Xia.

"is it nice?"

Jiang Xia's eyes lit up as he looked at the beautiful lighter.

"nice!"

"Hehe, how about we exchange the formula for that heat-generating agent?"

"Don't change!"

Er Gou was instantly choked by the urge to breathe.

“Free!”

"what?"

Seeing Er Gou's incredulous expression, Jiang Xia grinned and pointed to the blueprints in Sanban's hand, then unceremoniously took the lighter from him.

It's really beautiful. It's made of brass and decorated with a few red stones. When you gently press the cover, a ding sound comes out and flames appear.

Looking at the bottom of the fuselage, it's US ARMY again.

Hehe, that makes sense!

Sanban patted Jiang Xia on the head: "Young man, you gave us this formula when you left."

Er Gou went over to take a look and found that Jiang Xia had not only written down the formula for the thermite, but also a design plan for the heating pack.

Er Gou's eyes were smiling, but he was still fuming. "Then why did you take my lighter!"

"Pshaw, that was a trade. You can't trade your own comrades. Giving them away for free is a different story."

Er Gou opened his mouth wide and laughed silently, reaching out to Daozi beside him: "Team leader, we've gained a new comrade-in-arms, shall we celebrate?"

Daozi smiled and nodded, then took out a white packet from his bag, pulled out a cigarette, and handed it over.

Jiang Xia glanced at it, somewhat surprised.

Er Gou put his arm around his shoulder and said smugly, "Never seen this before, have you? A cigar! Do you know who smokes it?"

Jiang Xia knew, of course, that the story that had been passed down through the ages was actually true!

I thought it was some shameless cigarette factory in Shifang that was making random advertisements.

What number is this?

"Number 13!" Er Gou was stunned, but answered very quickly.

Jiangxia's eyes are even brighter; even if she didn't get a photo, it would be great to get the same cigar to try.

What a steal!

A group of people sat around and finished smoking the cigar with its unique flavor.

The train had arrived at the station, and the leader, Daozi, was the first to stand up:

"Let's go! Comrades! Take care!"

The remaining few people either patted their foreheads or put their arms around each other's shoulders, said goodbye one by one, and then blended into the crowd, disappearing from Jiang Xia's sight in the blink of an eye.

"Take care, comrades on the hidden front!"

Jiangxia silently offered her blessings.

He also handwrote a formula for thermite and sent a copy to Jiang Yuanchao, whose hands had been severed.

Originally, the primary use of thermite was in welding railway rails. Hopefully, this formula will make the road ahead easier for this fearless warrior.

After getting off the train, he met up with Zheng Aiguo, who had come to pick him up, and the two went together to the station where train 131 stopped.

After all, Jiangxia's original mission was to ensure the perfect delivery of the small cannon, and the small cannon that had been used excessively in the past still needed to be maintained.

As Jiang Xia walked past carriage K3, he stopped and reached out to polish the round badge again.

The red is dazzling, and the yellow is bright.

Under our badge, we are fearless!

……

The reunited Knife team opened the two safes in a secluded spot.

One safe was filled with gold and silver jewelry, while the other contained several documents.

If you flip through the document with your knife, the topmost file contains only a string of English symbols.

L/DD > 0.5

The high-frequency military radio made contact with the rear base.

The home base reacted swiftly and with strong language.

"Destroy the documents on the spot!"

"Bring all relevant personnel back to headquarters! Investigate this matter thoroughly!!!!!"

The five exclamation marks in a row demonstrate the determination of the stronghold.

"Hey? Er Gou, you haven't processed the intelligence we captured, have you?"

"No way?"

"That's good. This is the first time our headquarters has been so excited, asking us to take the people back."

"Uh...we need to hurry!"

While burning the documents, Dao Zi fiddled with the pile of gold and silver jewelry.

"Hey, this thing looks like something from the palace. By the way, where did you put those intelligence reports?"

Uh...

……

The closed carriage 131 opened, and Jiang Xia was somewhat taken aback when he saw the nearly frozen white figure in the pile of straw.

"Uncle Zheng? Your train does this kind of thing?"

Zheng Aiguo covered his face, unsure how to explain.

Fortunately, the knife reappeared, and he took a few sets of tattered cotton quilts and led the figures away.

"Tsk, what did you do that warrants a long-distance chase?"

"I don't know, there's a formula I can't understand! But the headquarters has decided to bring those Russians back with us!"

"Tch, it would have been so much better if we had followed my plan from the beginning. Instead, Jiang Yuanchao had to recuperate for so long!"

Daozi chuckled and tossed a seal to Jiang Xia.

"Take this little gadget and play with it."