Lin Guiren (played by Tony Leung) is affiliated with the Special Detective Team of the Japanese Defense Foreign Affairs Division. Any strange case can be easily solved with his extraordinary wisdom and extraordinary skill. Recently, the U.S. government offered a bounty of US$30 million to track down the electronic version of counterfeit U.S. dollars known as the "Avenger". Guiren knew that the electronic version had arrived in Hong Kong, so he went into the gang's den to steal it, but he met the charming female snitch JJ (played by Shu Qi). ). The two worked together to steal the electronic version, which attracted gangster siege. At the last moment, JJ betrayed Guiren, saying sweet words but escaping with the electronic version. After JJ succeeded, he happily opened the iron box and took a look, but there were only two Hui Chun inside.

With a smile on his face, Guiren went to the U.S. Consulate to collect the reward and took the real electronic version. He was greeted by Owen (played by Simon Yam), a cold-faced clerk. He asked Guiren to wait, and there were beautiful women and fine wines waiting for him. Owen took the electroprinted version with him and asked an expert to check it for acceptance. However, Guiren suddenly passed out drunk. When he woke up, he was handcuffed by guards who accused him of trespassing into the consulate. Guiren discovers that Owen and the electronic version have also disappeared!

Miyuki, Takahito's Japanese assistant, came to bail Takahito out with the deputy director, but saw that he had turned into a decadent look. The deputy director said that the U.S. Consulate had not received any record of the "Avenger", and Owen, who met him, had already left Hong Kong on vacation, so it was impossible for Guiren to see him! Although the consulate did not pursue the case, Guiren knew that Owen was a rare opponent in recent years and decided to get to the bottom of it.

Miyuki found out that the consulate had also launched an investigation into Owen and learned that he was in South Korea. Guiren immediately rushed to the local area and recruited a number of beautiful Korean female assistants. They found out that Owen had no fixed address and only rented a van, so they started following him. However, the alert Owen discovered that the two sides were fighting fiercely at the train station. During the entanglement, Owen's sleeve was caught by the car door. Owen was hanging outside the car and was dragged by the train. Guiren grabbed Owen's sleeve in the car and thought he could pull him away. He restrained. Unexpectedly, after the train arrived at the platform, the door on the other side opened, and Owen took the opportunity to use Jin Chan to escape.

Owen went to the wrestling ring to contact Black Bear, the South Korean leader of the counterfeit banknote group, and his translator Jin Jiying (played by Zhuo Yun), and handed over an electronic copy to the other party for verification. However, Guiren and his assistants tracked him down. Owen asked Black Bear to solve the problem on his behalf so as not to affect the transaction. Guiren was immediately besieged by Black Bear's subordinate Quan Zhengren and a group of gangsters, and the situation was dangerous. Owen said that many Middle Eastern buyers are eyeing the electronic version, so they are now asking for US$40 million. Black Bear couldn't decide, so Owen asked him to talk to the leader to avoid wasting time. After Guiren used all his strength to repel Quan Zhengren, Owen was nowhere to be seen.

Guiren and his assistants had no choice but to go home and found a pair of Hui Chun posted on the door! JJ suddenly appeared and accused Guiren of cheating on her, and the two sides started a war of words. JJ knew that Guiren was chasing Owen and pointed out that he went to the hot spring bath every day, so he discussed working together to regain the electronic version and share the bonus equally. When everyone arrived at the hot spring, Guiren took away Owen's clothes and made it difficult for him to fly. Guiren broke into the bathroom, and to his surprise, Owen was taking a bath wearing a full wetsuit, with an electronic board tied tightly to his arm. During the fight, Guiren was pulled into the hot spring by Owen. The place was slippery, causing him to lose his budget. Owen finally escaped, but the electronic version was snatched away by Guiren.

Owen took the remaining electrotype and met with Black Bear. Black Bear pointed out that the boss Polar Bear agreed to the price, but Owen raised the price. The black bear threatened Owen, but Owen calmly said that he would only negotiate with the polar bear and turned around and left. The black bear was furious and Owen was besieged by gangs. The situation was dangerous. When he thought he had escaped, he found that his car had been destroyed by Black Bear's men. At the critical moment, Owen snatched a woman's motorcycle in time to escape, only to find that there was a message for him on the car. Owen was suddenly filled with suspicion.

JJ and Guiren are often at loggerheads over the issue of electronic printing and equalizing bonuses. In fact, JJ has unknowingly developed a crush on Guiren. Owen sneaks into Guiren's house and tries to steal the electronic version, but is caught by JJ who was ambushing him early in the morning. Guiren had time to watch the battle, and finally made a joint effort to capture Owen.

Takahito used Japanese wasabi to force a confession from Owen, revealing Owen's identity and finding out that he was actually an American CIA agent. The purpose of taking the telegraph at the consulate was to conceal his identity and to disrupt Polar Bear's international counterfeiting syndicate. Takahito contacted the CIA through the Japanese Defense Foreign Affairs Section and decided to assist Owen in solving the case.

At the same time, JJ got a tip and found another electronic version of Owen's collection, but was immediately led by Quan Zhengren to kidnap her with the electronic version. Jin Zhiying called Guiren and told him that Black Bear wanted to exchange JJ for Dengxu and Owen, and the two parties agreed to trade in Seorak Mountain. Guiren and his assistants "escorted" Owen and the electronic version to the transaction location, but the real leader of the counterfeit banknote group appeared unexpectedly, and a thrilling battle for the electronic version broke out on the snow-capped mountains