Indeed, it seems that some people never learn, and after the recent fiasco of conniving Captain Harris in Police Academy 4: Citizens on Patrol (1987), once more, the sneaky officer wants to take over the ageing Commandant Lassard's job, and step into his shoes. This time, the perfect opportunity arises in the shape of the prestigious "Police Officer of the Decade" convention in sunny Miami Beach, to commemorate Lassard's dedication to the force; however, a fateful encounter with an audacious trio of diamond thieves leads to a dangerous, high-speed chase across the Everglades. Now, it is up to Commandant Lassard's nephew, Sergeant Nick Lassard, and the Academy's loyal graduates to save the day. Can the boys thwart Harris' plans?