Build a movie plot around this: What did Nick stumble upon? A paper heading of the Diamond Store
A:
The police must investigate a series of robberies along a strip of land in the city. The new mayor of the city (Kenneth Mars) assigns Captain Harris (G.W. Bailey) and Lt. Proctor (Lance Kinsey) to the case, but while on stakeout the Wilson gang manages to slip through their fingers.The Mayor wants Harris and Proctor to work with Police Academy head Commandant Lassard (George Gaynes) on apprehending the gang. Lassard assembles a seven-man team consisting of Hightower (Bubba Smith), Tackleberry (David Graf), Jones (Michael Winslow), Hooks (Marion Ramsey), Callahan (Leslie Easterbrook), Fackler (Bruce Mahler), and Lassard's nephew, Nick (Matt McCoy) who transfers from Miami (in the previous film Police Acdemy 5) to the city to remain close to his friends and dull-witted uncle.After distributing flyers as to the information of the Wilson gang and getting nowhere, Nick McCoy stumbles upon a paper heading of an antique diamond heading to a museum, and gets an idea to use it as bait: however the robbers nab the diamond anyway by cutting a hole in the truck and escaping through the sewer system. McCoy then decides to go undercover to get information regarding a possible hideout, but Harris decides to go undercover to get a confession.It turns out that Harris goes undercover as a window washer at a tall building, for which he has a fear of heights, and gets a confession of himself on tape after his loyal but numb-skull lacky, Proctor, accidentally knocks him over the balcony.It is revealed here that the robberies are committed by a group of three dim-witted criminals who do not seem to be able to do this on their own, and it is revealed they are being guided by a literally shadow figure known as the "Mastermind", who speaks to the three behind a wall of glass and uses a voice distortion device. He devises a plan to get the cops out of the way.Commandant Lassard and his men are later suspended after stolen jewellery from the last robbery is planted in Lassard's locker, pending an investigation. The misfit cops decide...