This film is the sequel to "Bad Boys", and the story still takes place in Miami. Miami's drug trade became extremely rampant overnight, and the fights between various drug cartels continued. In order to investigate the many contradictions within the drug cartels, a pair of "golden" partners of the Miami Police Department, the handsome Laurie (Will Smith) and the mysterious Benner (Martin Lawrence), were once again entrusted with the task. Soon, the two found out the ins and outs of the matter: an external drug trafficking force was invading the drug market in Miami, and the drug lord headed by him was ambitious and intended to control the drug trade in the entire United States and even Europe and establish a drug trafficking kingdom. When the police launched an operation to encircle and suppress the drug trafficking group, a female undercover agent of the DEA, Sydney (Gabrielle Union), was hijacked by drug dealers. The other party's condition was that Laurie and Benner must do illegal things, which stumped the two, because the beautiful Sydney was not only Benner's biological sister, but also Laurie's lover.