Kuryu and Asagi are nominated by their former colleague, Egami, to act as support for a big case in the Special Investigation Unit. Meanwhile, Tamura and Endo are on a case of murder involving Nagumo Toshiyuki who remains silent throughout the interrogations. If they choose to prosecute Nagumo, they will expose a false charge that was made for an old case where a life was taken. What will they choose to do?

Kuryu raises five other past similar cases in court in which the suspect is Nagumo Toshiyuki. Prosecutors from Josai Branch seek help from Kokubu Hideo who was the prosecutor in charge of the first case 15 years ago. Although prosecutors from other branches are against their actions, they never give up and just work harder.