After successfully thwarting the horrific experiments beneath the city, Conan and his friends' lives temporarily returned to normal. However, this peace did not last long.

One day, Conan received a mysterious invitation. The cover of the invitation featured a black bat design, but there was no sender's name or address.

Conan opened the invitation, and its contents made him frown.

"Dear Mr. Conan, I know you have solved many mysteries and saved this city many times. But an even greater challenge awaits you. Tonight at midnight, come to the abandoned clock tower, and you will uncover an amazing secret."

Upon seeing the invitation, Ran Mouri said worriedly, "Conan, this might be a trap. We can't go there lightly."

Lin Yu chimed in, "Yes, it's too suspicious."

But Conan firmly stated, "If there really is some secret threatening the city's safety hidden behind this, we cannot sit idly by."

After a moment of silence, Ai Haibara said, "Then let's go together, so we can look out for each other."

So, at midnight, Conan and the others arrived at the abandoned clock tower. All around was silent, save for the moonlight shining on the dilapidated building.

As they entered the clock tower, the lights inside suddenly came on.

"Welcome everyone." A strange voice rang out.

They looked in the direction of the sound and saw a masked person standing on a high platform.

"Who are you? Why did you call us here?" Conan asked.

The masked man smiled. "Don't rush, children. I called you here because this city is about to face a great disaster."

Kogoro Mouri shouted, "Stop spreading alarmist rumors!"

The masked man shook his head: "Believe it or not, it's up to you, but if you don't listen to me, the consequences will be unimaginable."

The masked man continued, "Underground in the city, there is a massive bomb, powerful enough to level the entire city."

"What?" everyone exclaimed.

"And the key to disarming the bomb lies in a mysterious code," the masked man continued.

Conan calmly pondered, "Why are you telling us all this?"

The masked man sneered, "Because only you have the ability to find this code and save the city."

After saying that, the masked man disappeared.

"Damn it, they got away!" Kogoro Mori said angrily.

"Never mind him for now, we need to find the bomb and the code quickly," Conan said.

They began searching for clues inside the clock tower. Lin Yu used his technological equipment to examine the surrounding environment, while Ai Haibara carefully analyzed the words left behind by the masked man.

“I’ve found some strange symbols,” Ran Mouri exclaimed.

Conan ran over to check: "This might be a clue to the password."

Just as they were anxiously searching for clues, they suddenly heard a noise outside.

"Oh no, the enemy is coming," Lin Yu said.

A group of men in black rushed in and engaged in a fierce battle with Conan and his friends.

Conan and his friends fought back fiercely, but the number of men in black increased, and they gradually found themselves in a predicament.

“This can’t go on,” Ai Haibara said.

Just then, Conan discovered a hidden passage.

"Everyone, follow me!" Conan shouted.

They escaped the clock tower through the passage and arrived at an unfamiliar place.

This place is like an abandoned factory, with broken machines and debris everywhere.

“We need to find a way to get rid of these enemies and continue searching for clues to the code,” Conan said.

They hid and evaded the men in black in the factory.

Kogoro Mouri was accidentally injured.

"Dad!" Ran Mouri called out anxiously.

"I'm fine, don't worry about me, you guys keep looking for clues," Kogoro Mouri said.

Conan, Lin Yu, and Ai Haibara continued searching for clues and finally found a combination lock in a corner.

"Perhaps this is the key to disarming the bomb," Conan said.

Based on the previously discovered symbolic clues, they tried entering the password.

After several attempts, the combination lock was finally opened.

Inside was a USB drive with the words "Bomb Password" written on it.

"Great, we found it!" Lin Yu said excitedly.

But at that moment, the men in black also spotted them.

"Quick, take the USB drive and go!" Conan shouted.

They fled desperately and finally escaped the pursuit of the men in black.

Conan and the others immediately handed the USB drive over to the police.

Police successfully defused the bomb threat using the password on the USB drive.

The city has once again turned the tide.

However, Conan knew that this was only a temporary peace, and many more challenges awaited them in the future...