This film is a sequel to "Bad Boy", which still takes place in Miami. The drug trade in Miami became extremely rampant overnight, and fighting between various drug trafficking groups continued. In order to investigate the numerous conflicts within the drug trafficking groups, a pair of "golden" partners of the Miami Police Department, the handsome Laurie (Will Smith) and the charming Binna (Martin Lawrence), gave orders again in the face of danger. Soon, the two figured out the ins and outs of the matter: An external drug trafficking force is invading the drug market in Miami. The leading drug lord is ambitious and intends to control the drug trade throughout the United States and even Europe and establish a drug trafficking empire. When the police launched an operation to suppress the drug trafficking ring, a DEA female undercover agent, Sydney (Gabriel Eunion), was kidnapped by drug dealers. The other party offered the condition that Laurie and Binner must do illegal things, which stumped the two, because the beautiful Sydney is not only Binner's biological sister, but also Laurie's lover.