Season 1
Episode: 1x01 | Airdate: Apr 9, 2018
Sugimoto Saichi, called "Immortal Saichi" for his incredible powers of survival, is panning for gold in the far north when he hears a story about buried treasure, hidden by a death row inmate. He decides to go after the treasure, but it will be a journey far longer and far more dangerous than he'd ever imagined.
Episode: 1x02 | Airdate: Apr 16, 2018
Saichi and Asirpa head to Otaru, the largest town in the area, in seach of the tattooed prisoners. They quickly find out that they're not the only ones after the treasure. The army is looking for it too. Saichi has to face off against a deadly sniper, and a horrible cold front is setting in too.
Episode: 1x03 | Airdate: Apr 23, 2018
Asirpa takes Sugimoto through the Hokkaido forests, where they encounter a bear in its den. Sugimoto is impressed by Asirpa's knowledge of the land. Meanwhile, another, older force is after the gold..
Episode: 1x04 | Airdate: Apr 30, 2018
Sugimoto visits an Ainu village where he learns about their ways and culture. The next day he leaves in secret, where he is captured by the 7th and tortured.
Episode: 1x05 | Airdate: May 7, 2018
With the help of Shiraishi, Asirpa goes to rescue Sugimoto from the 7th. But the situation is dire, and Sugimoto has already been badly injured.
Episode: 1x06 | Airdate: May 14, 2018
Two hunters are after Retar, the last of the Ezo wolves, and the last living wolf in Japan. Both of these hunters have tattoos, and Sugimoto wants them for himself. It's a battle between hunters and prey in the snowy mountains of Hokkaido.
Episode: 1x07 | Airdate: May 21, 2018
During the battle with the hunters, Sugimoto is separated from Asirpa. Nihei abandons the wounded Tanigaki and tries to use Asirpa as bait to lure Retar. But just when Nihei thinks he's won the battle, another wolf appears and rips open his neck.
Episode: 1x08 | Airdate: May 28, 2018
Shiraishi is chased all across the city by Ushiyama, and only escapes his predicament by getting the 7th involved. During the chaos, Hijikata's forces launch a raid on a local bank, blasting open a wall to get back his legendary sword.
Episode: 1x09 | Airdate: Jun 4, 2018
Sugimoto's crew follows rumors of a tattooed prisoner among the herring fishermen on the coast near Otaru. There they encounter Henmi, a strange, perverted serial killer. The fight between him and the gang develops into a deadly seaborne battle involving a killer whale.
Episode: 1x10 | Airdate: Jun 11, 2018
Tanigaki is now staying in Asirpa's village, trying his best to recover and help the people who have been aiding him. But a faction of the 7th wants to split off from the Lieutenant, and they have plans for him.
Episode: 1x11 | Airdate: Jun 18, 2018
The gang stays in a strange hotel, run by a former prisoner. This hotel has a dark secret, but even its wicked owner quickly finds herself overwhelmed when both Sugimoto's group and Ushiyama book rooms, and both Shiraishi and Ushiyama want to sleep with her.
Episode: 1x12 | Airdate: Jun 25, 2018
The gang leaves Sapporo and visits a village where a relative of Asirpa lives. There they meet a strange fortune teller, who seems to know something about them, and about their futures.
Episode: S01 Special | Airdate: Sep 17, 2018
Season 2
Episode: 2x01 | Airdate: Oct 8, 2018
Lt. Tsurumi visits Edogai, a taxidermist, in the town of Yuubari. He has a new plan to bring chaos to the war for the tattoo code: he's going to create fake skins that only he can detect.
Episode: 2x02 | Airdate: Oct 15, 2018
Edogai succeeds in creating 6 sets of fake skins when his workshop comes under assault. He flees with Sergeant Tsukishima into the local mines, pursued by Ogata and Sugimoto.
Episode: 2x03 | Airdate: Oct 22, 2018
Hijikata, who is now temporarily allied with Sugimoto, stays behind in Yuubari to try and find clues to the fake skins. Edogai's workshop is surrounded by members of the 7th division, and they're forced to fight their way out.
Episode: 2x04 | Airdate: Oct 29, 2018
The team is on a mission to rescue Shiraishi, who's been kidnapped by the 7th. But he's in the middle of a massive garrison, surrounded by hundreds of troops. How can they possibly sneak in...?
Episode: 2x05 | Airdate: Nov 5, 2018
Suzukawa heads into the 7th's garrison to rescue Shiraishi. When the mission goes wrong it's up to Sugimoto to get them out.
Episode: 2x06 | Airdate: Nov 12, 2018
Tanigaki remembers his past as a matagi, and the story of how he came to join the 7th Divison and work for Lt. Tsurumi.
Episode: 2x07 | Airdate: Nov 19, 2018
The group meets up with Tanigaki and stop at an Ainu Kotan. Private Koito returns to Lt. Tsurumi and reports on their whereabouts.
Episode: 2x08 | Airdate: Nov 26, 2018
The group is attacked by a huge horde of locusts and split. Asirpa and Inkarmat flee to the water, where Inkarmat tells Asirpa a terrible secret.
Episode: 2x09 | Airdate: Dec 3, 2018
After visiting a hot springs, the group is ambushed by a gang of blind thieves. In the darkness, the thieves, who navigate by sound, have a tremendous advantage, and the group is in deadly peril.
Episode: 2x10 | Airdate: Dec 10, 2018
At last the group makes it to Abashiri. After everything that's happened so far, it's time for them to go inside and meet No-Face..
Episode: 2x11 | Airdate: Dec 17, 2018
Chaos has broken loose at Abashiri. The 7th Division is shelling the prison. The prisoners are loose. Sugimoto is trapped inside. Can they find No-Face in the chaos?
Episode: 2x12 | Airdate: Dec 24, 2018
At last, No-Face has been found. But will he survive long enough to tell them where the gold is? And what about the traitor who's lurking in the background, waiting for the right moment to strike?
Episode: S02 Special | Airdate: Mar 19, 2019
Episode: S02 Special | Airdate: Sep 19, 2019
Episode: S02 Special | Airdate: Sep 18, 2020
Season 3
Episode: 3x01 | Airdate: Oct 5, 2020
Sugimoto was separated from Asirpa after the incident at the prison. Now, he's tracked her down to Karafuto, a place even further north and colder than Hokkaido.
Episode: 3x02 | Airdate: Oct 12, 2020
Sugimoto and the 7th engage in a traditional Russian combat sport to track down one of the tattoed prisoners.
Episode: 3x03 | Airdate: Oct 19, 2020
As his group tracks Kiroranke and Asirpa in the frozen north, Tsukishima reflects how he began to be involved with the 7th Division.
Episode: 3x04 | Airdate: Oct 26, 2020
Sugimoto joins a group of traveling performers in hopes it will lead him to Asirpa.
Episode: 3x05 | Airdate: Nov 2, 2020
As they cross the borders into Russia, Kiroranke's group finds that there's more waiting for them than they expected.
Episode: 3x06 | Airdate: Nov 9, 2020
After a brutal sniper battle, Ogata is badly ill. As he recovers, he reflects on his past, and what he did to make himself the man he is today.
Episode: 3x07 | Airdate: Nov 16, 2020
Sugimoto's group is separated during a nasty blizzard. One party safely makes it to a nearby lighthouse, but another is forced to camp in the middle of the snow. They make a bed under the dogs to keep warm, but...
Episode: 3x08 | Airdate: Nov 23, 2020
Hijikata tracks down one of the tattoos to an isolated fishing port in Hokkaido. Its bearer is Yoichiro the Manslayer, a legendary assassin from the last days of the shogunate.
Episode: 3x09 | Airdate: Nov 30, 2020
Kiroranke's Group is getting ready to free Sofia from Akou Prison. Kiroranke tells Asirpa a story of the man who taught him, Sofia, and Wilk Japanese language.
Episode: 3x10 | Airdate: Dec 7, 2020
Kiroranke's Group breaks out Sofia and her accomplices out of Akou Prison. After meeting Asirpa, Sofia shares her memories of Wilk with his daughter, who in her own stead remembers something very important...
Episode: 3x11 | Airdate: Dec 14, 2020
As Asirpa remembers something important about her father, Ogata takes her away from the others and tries to get her to tell him the secret to the code. Unbeknownst to them, Sugimoto is following close. Meanwhile, Sugimoto's Group has finally caught up with Kiroranke.
Episode: 3x12 | Airdate: Dec 21, 2020
Asirpa reaches Kiroranke to witness his final moments and tell him that she has remembered something important. The group leaves Ako, but before going back to Hokkaido they need to find a doctor take care of Tsukishima's and Ogata's wounds.
Season 4
Episode: 4x01 | Airdate: Oct 3, 2022
As Sugimoto and the members of the 7th Division head back into Japanese territory, they're attacked by a sniper.
Episode: 4x02 | Airdate: Oct 10, 2022
Kadokura challenges Sekiya, one of the tattooed prisoners, to a deadly game in order to save the life of Hijikata.
Episode: 4x03 | Airdate: Oct 17, 2022
The members of the 7th hunt a strange man at the Noboribetsu hot springs.
Episode: 4x04 | Airdate: Oct 24, 2022
Episode: 4x05 | Airdate: Oct 31, 2022
Episode: 4x06 | Airdate: Nov 7, 2022
Episode: 4x07 | Airdate: May 15, 2023
Episode: 4x08 | Airdate: May 22, 2023
Episode: 4x09 | Airdate: May 29, 2023
Episode: 4x10 | Airdate: Jun 5, 2023
Episode: 4x11 | Airdate: Jun 12, 2023
Episode: 4x12 | Airdate: Jun 19, 2023
Episode: 4x13 | Airdate: Jun 26, 2023