The movie takes place again in the fictional Wangan Station of the Tokyo Metropolitan Police Department the once empty space within Wangan's jurisdiction has become a popular tourist attraction. When a string of murders of company execs begins taking place, Aoshima jumps at the opportunity to pursue something other than his current case, which he finds less than inspiring. However the powers that be have other ideas, and Wangan again plays host to a special investigation team from headquarters. Aoshima's friend Superintendent Shinji Muroi, assigned by headquarters to assist Okita, is again powerless to help the local officers as decisions are made by the higher ups.

The story features a team of four sleuthing sisters.

A hero called the legendary third baseman in the former prestigious grass baseball team "Peanuts", will start to rebuild the peanuts that have now turned into weak teams from the outset. Peanuts are going to fight against the team of strong teams, taking advantage of the redevelopment of the city where Captain Sagara lives.