Bad boys, bad boys whatcha gonna do? Whatcha gonna do when they come for you?

The drug ecstasy is flowing into Miami, and the police want it stopped. Police Detective Marcus Burnett (Martin Lawrence) and his partner, Mike Lowrey (Will Smith), are just the men to do it. They track the drugs to a Cuban smuggler, Johnny Tapia (Jordi Mollà), who is also involved in a bloody war with Russian and Haitian mobsters.

If that isn't bad enough, there's tension between the two cops because Lowrey is romantically involved with Burnett's sister, Syd (Gabrielle Union).

We ride together, we die together, bad boys for life.