Summon the Villain: Marvel.

Helmut Zemo walked out of the central laboratory of the secret base slowly, his expression was deep, and his eyes flashed with complex emotions. His meeting with the white gloves Gabriel Weissman just now made him realize that time did not allow him to delay any longer. Although the failure of the Paris attack was expected, the battle made him clearly see a problem-Xumajia and European governments have become obstacles to his plan. To truly achieve his goal, he needs to get a stronger force on his side, and crushing the Avengers is the key to opening this path.

Zemo walked to the core control room of the experimental base. The screens around him lit up at the same time, showing the status reports of the currently deployed superpowered soldiers. Each experimental subject has undergone preliminary genetic modification and possesses powerful strength, speed and endurance. Some soldiers have also been given special abilities, such as controlling fire, manipulating electricity or having the precise vision of long-range sniping. Zemo stood in front of the console, staring at the data coldly, his hands clenched, and he already had a perfect plan in his mind.

"It's time for the Avengers to truly split up..." Zemo muttered to himself, then turned to the researchers beside him and gave a cold order: "Send out the first batch of super-powered warriors, targets: Captain America, Iron Man, Black Widow, Falcon, War Machine and Scarlet Witch."

It's midnight in New York City.

Steve Rogers stood in the Avengers training base, holding his shield tightly in his hand, thinking about the series of recent events. Although they have prevented several terrorist attacks, he always feels that an invisible conspiracy is approaching. Suddenly, the alarm of the base interrupted his thinking, and the harsh red light illuminated the entire room.

"Steve!" Falcon Sam Wilson rushed over with a serious look on his face, "Abnormal energy reactions have been detected around the base. A group of people with super powers are approaching us quickly!"

"Superpower?" Steve frowned, instantly realizing the enemy's fierceness. He quickly put on his shield and said, "Gather everyone and prepare to meet the enemy."

Outside the base, a white light flashed by like the wind. Quicksilver Pietro Maximov rushed to the outskirts of the base at an extremely fast speed and immediately began to investigate. His speed was like lightning, and the whole world seemed to slow down several times in his eyes. He quickly scanned the surroundings and finally locked onto several superpowered warriors wearing black combat uniforms.

"Looks like we have some uninvited guests," Pietro said with a sly smile, immediately rushing towards the nearest enemy.

At this time, Steve, Falcon, Black Widow Natasha, Scarlet Witch Wanda and War Machine James Rhodes have assembled. They are fully armed and ready. When a huge explosion shattered the west wall of the base, four super-powered warriors rushed out of the smoke.

The leader was a strong fire warrior, his arms were like flames, and his eyes were burning with enthusiasm. He raised his arms and swung them violently, and the flames instantly spread, forcing Steve and Sam to step back a few steps.

"This guy has a lot of firepower," Pietro suddenly appeared beside Steve, smiling with his usual confidence, "but speed is obviously not his strong point."

"Pietro, be careful!" Steve warned, raising his shield to block the oncoming flames.

At the same time, another superpower quietly climbed up to the nearby high ground, holding a giant sniper bow, coldly aiming at Natasha in the distance. Natasha was agile and swift, quickly discovered the presence of the sniper, and immediately changed her tactical position.

"Quicksilver, assist Natasha!" Steve ordered.

"No problem, Captain." Pietro immediately rushed towards the target. His speed was too fast to be caught by the naked eye. Only a silver afterimage was seen shuttling between the enemy and his teammates. He quickly appeared in front of the sniper, snatched her weapon in a flash, and knocked her to the ground with a heavy punch.

Natasha took the opportunity to follow up, and after subduing the enemy, she nodded to Pietro: "Well done."

"Yeah, that's me," Pietro responded with a smile.

Meanwhile, War Machine James Rhodes and Falcon Sam Wilson dealt with other enemies on the other side. A warrior who manipulated electricity hit James' armor system with a strong current, causing the armor to short-circuit and restrict his movements. James gritted his teeth and struggled to adjust the system while trying to resist the enemy's attack.

"Rhodes, hold on, I'll cover you!" Sam quickly spread his wings, flew into the air, aimed his machine gun at the enemy on the ground, and launched a fierce fire suppression. The electric warriors were instantly unable to move by the machine gun fire, and were finally completely defeated by the heavy firepower of the war machine.

The Scarlet Witch Wanda cast her chaos magic on the other side of the battle. Her magic instantly bound the two enemies in mid-air. The enemies struggled desperately, but could not escape Wanda's powerful mental control. A red light flashed in her eyes, and she threw the enemy far away.

As the enemy gradually lost their ability to fight back, the Avengers began to gain the upper hand. Quicksilver continued to shuttle across the battlefield at a very fast speed, easily subduing an enemy every time he appeared, while Steve, with his agility and the use of his shield, firmly suppressed the flame warrior.

"Who are they?" Steve asked breathlessly, looking at the last enemy who fell to the ground.

"These guys are coming with great force, and they are obviously well prepared." Falcon responded, his eyes full of confusion, "They have super powers, but I have never seen their faces."

The Red Witch approached and carefully looked at the fallen enemy, frowning: "These people are not willing, their abilities seem to be forcibly stimulated, and these super powers seem to come from some kind of transformation."

“Transformation?” Steve felt a little uneasy. “This sounds like some kind of experiment.”

Quicksilver gently kicked the unconscious enemy on the ground and chuckled, "If this is an experiment, then these experiments are not very good. They are as slow as turtles."

Steve ignored Pietro's teasing. He looked up at the night sky in the distance and thought: "No matter who is manipulating these people behind the scenes, we must find out their purpose."

"It seems that this attack is just the beginning." War Machine said in a deep voice, his eyes became deep and vigilant.

Quicksilver stood beside the group and said quickly, "Well, if there are more guys like them coming, you'll have to move faster. Otherwise, I might have to rescue you every day."

Steve's eyes were calm and determined. "We will find the mastermind behind them and make sure such attacks don't happen again."

Falcon nodded in agreement, and Scarlet Witch clenched her fists silently. The aftermath of the battle gradually dissipated in the night sky, but the Avengers already felt that more danger was approaching.

In the SHIELD's combat command room, Nick Fury was standing in front of a huge electronic map, his arms crossed, his eyes calmly scanning the people present. As the data on the screen continued to flash, the whole room seemed unusually quiet. The Avengers had just experienced a fierce battle, and although the enemy had been defeated, the doubts and uneasiness in their hearts had not dissipated.

"It seems that things are much more complicated than we thought." Fury's low voice broke the silence, and his single eye showed a hint of gloom and caution. He turned his gaze to Steve Rogers, and his tone was faintly warning, "Those super-powered soldiers are not simple street thugs. They are precisely designed biological weapons, and these attacks are just the beginning."

Steve held his shield tightly, his expression firm but slightly doubtful. He slowly approached Fury with expectation in his eyes: "You know where they came from, right?"

Fury nodded slightly and lightly pressed the button on the console. The huge electronic map instantly zoomed in and focused on a conspicuous area - Africa.

"They come from here," Fury pointed his slender finger at an area on the map and continued, "I have traced the source. Some secret bases in Africa are carrying out superhuman genetic modification. One of the leaders is called Helmut Zemo. The financial support for this plan involves deeper forces, and this Paris attack and the attack against you are just a test for them."

Steve looked at the map, his face becoming more serious. His right hand unconsciously clenched the shield, as if to confirm that he was ready to fight at any time. His eyes were firm, with an unshakable determination: "Since the goal is clear, let's act. I will go there in person, and my shield is already ready."

At this moment, Natasha Romanoff stepped forward and asked softly: "Should we notify Tony? This is a big operation after all, and Tony's support may make things easier."

Falcon Sam Wilson, who was standing aside, was a little uneasy, but he did not show too much emotion. For him, the relationship between himself, Steve and Tony would always make the situation complicated, but out of respect for Natasha, he just waited silently for Steve's response.

Steve glanced at Natasha and shook his head without hesitation, his voice firm: "No, Tony can't. Ever since the passage of the 'Superhero and Artificial Intelligence Regulation Act', his and my positions have been too different. The current situation... we can't let these things be mixed with personal grudges."

Hearing this, Fury's lips curled up slightly with an almost imperceptible smile. He adjusted his stance, his eyes revealing a hint of humor and philosophy: "You know, sometimes people standing in the same trench may not hold the same weapons. The differences between Tony and you are a problem that all great alliances in history have faced. You are moving forward on different paths, but your goals may not have changed."

He paused, his tone becoming more relaxed, "Like I said before, 'You can carry a good shield, but no shield in the world can block everything.'"

Steve couldn't help but laugh, patted Fury on the shoulder, and said in a humorous and relaxed tone: "Director, you always have a way to make me less nervous. Thank you, but I won't use Tony this time. I know you are doing this for my own good, but there are some roads you have to walk alone."

Fury looked up, stared at Steve's determined face, and nodded gently. He knew that the Captain America in front of him was always the stubborn and loyal warrior. No matter how the world changed, he would stick to his principles and would not be easily shaken.

"Well, since you've made up your mind, I won't say much." Fury's tone was a little helpless, but more of trust. "But, Steve, remember, the power of Umbrella and other forces is not the only thing we need to worry about. You need to pay attention to those invisible shadows behind you. They are the most deadly threat."

Steve nodded, his eyes as firm as steel. He knew that this mission would be another difficult challenge, but he was ready. Hawkeye, Quicksilver, Natasha, Sam, and Scarlet Witch all stood silently beside him. The whole team had become an unstoppable force.

Following Fury's final instructions, the Avengers began to prepare for a new operation, and their target was the African continent that hid countless secrets.