With the country all online assisted Tozaki employs a new tactic to deter Sato. Kei loses its disguise.

Ajin are humans that cannot die. Seventeen years ago, they first appeared on a battlefield in Africa. From then on, more of their kind are discovered within the human society. Their rarity in appearance means that, for experimental purposes, the government will generously reward anyone who captures one. In the present day, for what a certain high school student expects to be a typical summer holiday, his life is about to turn unexpected...

Mr Keita reports Kei Nagai to the police to claim a reward. Yu Tosaki orders all available forces to the area to catch Kei. When Kei is confronted by the police, he uses his Black Ghost to delay them allowing him to escape into the woods. He uses Ko Nakano’s phone to throw the police off his trail, but Tosaki realizes it's a ruse and closes in.

Although he was caught off his guard, Sato has one last plan: to kill the rest of the team.

People from Satō's group desert and make contact with Nagai. The US plans on releasing the chemical weapons on Satō in the sewers. Tosaki is called and asked for assistance, which leads Nagai and the group to go after Satō once more.

Sato starts killing people in the lab. Kei tries to stop him and discovers that Ajin has a weak spot.

In the supposed day of the attacks, the scenario of the city is shocking. Sato prepares for action with your team.

Kaito and Kei are seen and pursued by another motorcyclist. Meanwhile Yu Tosaki recognises Sato, an Ajin hunter at the original accident scene. The other motorcyclist causes the boys to crash, but Kaito recovers and knocks him unconscious.

Tozaki make new discoveries. Neighbors Mrs. Yamanaka suspect Kei. Sato finalizes his plan.

Sato is able to assassinate another off of the list. Nagai and Tosaki begin planning their counterattack against Sato. Nagai begins to struggle with the behavior of his IBM, wondering if he himself has to change. Tosaki also let's Nagai know Kaito's current condition.

Sato prepares to attack. Ko discovers the hideout of Kei and begs for help. Tosaki gets a surprise visit.

Kei Nagai is a good student whose life turned upside down when he was struck by a truck. After this accident he discovers that he is an immortal (ajin). Feeling shocked and panic, he runs away to an isolated place. Now he can't trust anyone but his childhood friend Kaito.

Kei continues his training. Tosaki attempts to get the Minitser's schedule. The Minister refuses, which leads Tosaki to attempt to steal it. However, the American investigators interfere.

With his job at stake, Tozaki takes drastic measures to find out more about Ajin. Sato takes his emphasis on putting into practice a new plan.

Izumi fight against a being in Eriko's hospital room. After saying goodbye to Kaito, Kei receives a mysterious invitation.

Satō emerges from the rubble as he blew up an existing tunnel below to escape being crushed by Nagai's plan. Satō begins to hunt Nagai and the others as they attempt one last attempt as stopping him before the military unleashes a gas attack.