Saigo no Yakusoku (The Last Promise) is a suspense drama about five men working in or for a company that is hijacked by terrorists. Satoshi Ohno plays a janitor who cleans the offices within the building. Kazunari Ninomiya plays a character who works within the security center of the building. Matsumoto Jun plays an express service biker who enters the building to deliver a package to the President's daughter, played by Kuroki Meisa. Sakurai Sho plays an insurance agent who enters the building attempting to sell insurance to one of the employees. The drama shows how these five men attempt to escape the building.