Ep. 7: Nine and Twelve engage with Five's chess game while police uncover the truth behind the Sphinx video.
Nine and Twelve participate in Five's chess game, prompting Shibazaki and officers to discover that airport staff were ordered to transmit messages. They realize the Sphinx video was a police fabrication and that they are actually communicating with Sphinx. Twelve uses Lisa to create a distraction with flares, allowing Nine to hack the camera system and approach Five undetected. Nine confronts Five, who reveals Lisa is a captive at the bomb site. Police attack Nine, forcing him to flee and regroup with Twelve. Lisa calls to report the bomb is on an autopilot plane heading toward a crowded terminal. Nine convinces Shibazaki to infiltrate the control tower and divert the plane. They rescue Lisa, and Shibazaki forces an operator to change the plane's course. The plane explodes harmlessly. Five escapes with Lisa's school ID, vowing revenge.
Episodes
- Ep. 3 · Shibazaki joins the investigation team while Nine confirms police awareness of plutonium theft.
- Ep. 4 · Nine hacks police database while Twelve follows Lisa amid a riddle and bomb threat
- Ep. 5 · Lisa stays with Nine and Twelve while Shibazaki hunts a bomb on a train
- Ep. 6 · FBI joins investigation as Nine and Twelve head to Haneda Airport for a chess game with Five.
- Ep. 7 · Nine and Twelve engage with Five's chess game while police uncover the truth behind the Sphinx video.
- Ep. 8 · Media blames Sphinx for bombing while Shibazaki investigates Athena Project origins
- Ep. 9 · Nine and Twelve retrieve hidden nuclear materials while Shibazaki learns the truth about the Athena Project.
- Ep. 10 · Nine surrenders to police while Five pursues him amid Athena Project revelations and a bomb threat.
- Ep. 11 · Nine's nuclear threat triggers panic as Sphinx's plan unfolds in Tokyo.