Lu Chen hid his "Dragon Group" work badge and opened an auto repair shop in an old street just to protect his comrade and sister. But he could not escape the hail of bullets, but he could not escape the schemes in the gutter - his friends were silenced, he was framed as a murderer, and even the girl he was protecting was kidnapped.
On the day when wanted posters were posted on the streets, he smashed the wrench to reveal calluses on his hands, and his badge was hot in his palm: "You want to touch my people? Ask me first about the bullets in the gun."
The former lone wolf reappears, playing tricks on the criminal police captain who is tracking him down, while destroying the lair of the transnational criminal group "Black Scorpion". No one knows that this oily auto mechanic is rewriting the rules of the secret service world with his blood!
