Removing an abandoned wooden box, there was an electronic password machine in the corner, Liu Nan entered the password that Damon told him, and then the entrance to the basement opened after a soft sound, Liu Nan walked down the steps, and the entrance behind it closed again.

Entering the basement, turning on the light, Liu Nan can clearly observe the entire basement, compared to before leaving, the basement is just a dug pit, now the basement is like a room, the wall has been painted all over, several energy-saving lamps are installed on the wall, and the white light emitted makes the entire basement brighter.

Before leaving, the basement was still empty, and a set of sofas and coffee tables had been placed, and in the innermost part of the basement was a tool table with various gadgets on it, as well as scattered gun parts.

On one side of the basement wall, there are all kinds of guns hanging on it, I believe this must be Mindy's idea, she has long planned it, and on the opposite wall there are a few screens, which should be used for something.

There is also a small door in the basement, which Liu Nan knows, inside are generator sets and battery sets, which supply electricity to this basement, and all the soundproof materials are used inside, and there is no movement inside at all outside.

It didn't take long to wait in the basement before Damon, Frank, and Mindy arrived, and you could see how idle they were, and based on the time, they must have left for the place after receiving the call.

"Liu Nan, you've been gone for a long time, do you have any of my gifts?"

Mindy said when she saw Liu Nan, but she could see that she was very happy.

"Of course, Hollywood memorabilia, whatever you choose, you can also come and set up our secret base."

Liu Nan took out the travel bag behind him, which contained all kinds of souvenirs purchased in Hollywood, although several of them still had the label of maDeInchIna on them, but this is the United States, what does it matter.

Mindy was happy to turn on the travel bag and began to rummage through the things she was interested in, knowing that Mindy had not been out of the house yet, and Liu Nan's souvenir gifts were very attractive to her.

"Liu Nan, how is the harvest this time?"

Damon asked expectantly, he knew what Liu Nan was doing in Los Angeles, and Liu Nan had told him and Frank before leaving.

"Of course, it's a full load, don't worry, I've already brought back the serum for you and Frank's strengthening."

Liu Nan took out the refrigerator, entered the password to open it, and a puff of cold air was released from the refrigerator, and then he saw more than a dozen red potions neatly placed inside.

"Is this the Superman Soldier Serum? Was it Kim and Frank who were injected with those two bastards? ”

Frank was a little excited, his eyes staring at the cooler.

"That's right, this is the Superman Soldier Serum, but it's a weakened version, the original version can't be reproduced, as for the Jin and Frank injections, there may be differences, after all, the research capabilities of each organization are different, I don't know how they injected them, but I know that these are the closest to the original."

Liu Nan said that the superhuman soldier serum in Tony's hand was researched by his father with Dr. Abraham back then, except for the most core things I don't know, the others are the original formula, which is definitely the closest to the improved version of the original superman soldier serum, as for other people's, Liu Nan can't guarantee it, Hydra is researched backwards through the finished product, and the government may be very close to the original version, but Liu Nan doesn't believe that Dr. Abraham didn't hide it at the beginning.

"Can I inject these serums?"

Strength is more attractive to Mindy than gifts, knowing that this is the superhuman soldier serum that Liu Nan said, Mindy's attention immediately shifted from the gift.

"No, Mindy, if you inject these serums, you may never reach my current strength, these serums are for Damon and Frank, the two of them are old, they can't make much progress by relying on their own cultivation, if you want to improve your strength quickly, relying on foreign objects is the best choice, and you are different, you have a bright future, you should not cut off your future on these foreign objects."

Liu Nan said that after knowing the side effects of the Superman Soldier Serum, Liu Nan made up his mind that this thing would definitely not be used by Peter, David, and Minty.

"Are there really side effects? I still don't need it, Liu Nan, I will definitely be able to catch up with you. ”

As soon as she heard that there were side effects, Mindy immediately gave up her plan to use serum, the improvement in a short period of time is not what Mindy is pursuing, she has a deep understanding of Liu Nan's strength, even if she uses serum, she may not be able to compete with Liu Nan, or honestly step by step, so as to have a chance to catch up with Liu Nan's realm.

"Damon, Frank, now that you know that the serum can have side effects, do you want to continue using it?"

Liu Nan turned to Damon and Frank, and also asked for the opinions of the two parties, and if they didn't want to use it, Liu Nan wouldn't force them.

"Are the side effects life-threatening?"

Frank asked.

"No, on the contrary, it can increase your lifespan, strengthen your cells, and make you live longer than anyone else."

Liu Nan said, just look at Captain America, although Captain America has been frozen meat for a period of time, but Captain America's aging rate is far lower than that of ordinary people, this is the effect of serum strengthening, maybe the weakened version of the serum is not as good as Captain America's original serum, but the effect of strengthening cells is still there.

"Then there will be no problem, as long as I get revenge, I am willing to pay any price."

As long as he didn't die immediately, Frank was willing to give everything, and his life was only revenge.

"I don't have a problem, I know, now that I'm old, I can't compare with Mindy and them, and it is also a good choice to be able to rely on foreign objects to improve my strength."

Damon also nodded in agreement, the side effects that Liu Nan said had no effect on him, he already had Mingdi, and he didn't need to have any more children, so Damon also agreed to inject serum.

Since Damon and Frank agreed, there was no doubt, Liu Nan took out two serums from the refrigerator, prepared the syringes, and injected Damon and Frank into them.

The process is very simple, not as big as when Captain America was injected in the movie, and the reason is very simple, first, the superhuman soldier serum injected by Captain America is the original, the effect is powerful and the effect is obvious, otherwise how would it make Captain America a small man become a strong man, so the protection measures must keep up.

Second, Captain America injected not one serum at a time, but several, and if it wasn't protected, Captain America might have been a puddle of meat and mud, blown up by the power of the serum.