DEA team led by Du Yufei (Wang Qian Yuan) together with Hua (Yuan Shanshan), Liu Shu (Liu Hua) and (Chou You) are out to smash drug trafficking gangs. The team goes undercover next door to the main suspect. To keep their cover they open a spicy crawfish shop. Unexpectingly business booms. They team gets torn between their obligations to the police and their new business venture, while the drug gangs strike again.