It’s been a little over a year since Inspector Akane Tsunemori chose to put her faith in the Sibyl System and keep its true nature a secret. Assigned to a new division with a few familiar faces, Akane and her team of Inspectors and Enforcers are charged with upholding the law in a society where just thinking about a crime is enough to get you locked away forever -- or executed on the spot. Just as Akane settles into her new routine, a terrorist bombing in the center of the city shakes the System to its core and launches an investigation that uncovers a network of latent criminals who claim their leader has the power to lower their crime coefficients. After Enforcers begin turning up dead with cryptic messages scrawled near their bodies, Akane starts closing in on the answers she’s looking for -- completely unaware that an even deadlier threat is lurking closer than she could ever imagine.

"Justice" opens up a new world. In the near future, the Sybil System, a surveillance network that quantifies human souls, maintains public order. In a changing world, detectives with Dominators, guns that measure "Crime Coefficients," pursue "latent criminals" before they commit crimes. The third series of Psycho-Pass follows two inspectors seeking the truth: Arata Shindo and Kei Mikhail Ignatov.

After the events of Psycho-Pass 3, Inspector Kei Mikhail Ignatov finds himself involved with an organization named Bifrost. First Inspector Koichi Azusawa coordinates an assault on the Public Safety Bureau tower.

While attending a meeting as a Chief Inspector of the Public Security Bureau, Akane Tsunemori received a report that an incident had occurred on a foreign vessel, and this was the beginning of a big and unexpected case.

A runaway vehicle crashes into the Public Safety Bureau Building. The driver is identified as Izumi Yasaka, a psychological counselor at the Sanctuary, a Latent Criminal Isolation Facility in Aomori Prefecture. But right before her interrogation, Inspector Mika Shimotsuki and Enforcer Nobuchika Ginoza are tasked with promptly escorting Yasaka back to Aomori. What awaits them there is a False Paradise.

2112; the summer before Akane Tsunemori was assigned to Criminal Investigation Department. Teppei Sugo, an accomplished pilot of the Defense Army, joins the military operation in Okinawa. Three months later, an unmanned combat drone opens fire on the Ministry of Defense in Tokyo. Enforcer Tomomi Masaoka is dispatched to Sugo's military base to investigate the truth behind this case.

Following the incident in the Southeast Asia Union in 2116, Shinya Kogami resumes his vagrant journey. In a small South Asian nation, Kogami rescues a bus of refugees under attack by armed guerrilla forces. Among the refugees is a young lady by the name of Tenzin, who begs Kogami to teach her how to retaliate against the enemy.