Sheriff's Deputy Rick Grimes is shot on duty and enters a coma, awakening to a post-apocalyptic world. He meets survivor Morgan Jones and his son Duane, who explain the pandemic that changed people into undead monsters they call "walkers." Morgan's wife, Jenny, was bitten and resurrected but Morgan let her go. Rick cleans out the firearms cage at the police station and sets out with a gun bag. He gifts Morgan a rifle to put down Jenny, but Morgan can't gather the strength. Rick departs for a saf
Shane leads a camp outside Atlanta and, believing Rick to be dead, has entered a relationship with Lori. Meanwhile, Rick is rescued by Glenn, the man on the radio. Rick meets Glenn's entrapped group, including Andrea, Merle, and T-Dog. When Merle jeopardizes the group's safety, Rick restrains him and masterminds an escape. He and Glenn pose as walkers, safely wade through the horde in the street, and return to rescue the group. In the chaos, Merle and the gun bag are abandoned.
A teen idol, Yui Saikawa, enlists Kimizuka and Natsunagi--who has taken up the mantle of legendary detective--to guard a priceless sapphire. In preparing for this, the two realize that more than just a precious jewel is at risk.
Inspired by a forgotten dream, Jim digs dozens of graves. In Atlanta, Daryl finds evidence that Merle cauterized his wound and fled. Meanwhile, Glenn is captured by a Latino gang. After a shootout nearly ensues, Rick learns that the gang is protecting seniors in a nursing home and gifts them several weapons. Jim reveals that walkers ate his family. That night, walkers attack the camp. Rick, Daryl, and Glenn return and kill them, but are too late to prevent losses, including Andrea's sister Amy.
After burying their dead, Shane blames Rick for leaving the camp vulnerable to attack. Jim reveals that he was bitten, spreading panic within the group. Rick proposes moving to the CDC, hopeful of a cure, but Shane is opposed. While they debate privately in the woods, Shane considers shooting Rick, but thinks better of it and conforms to Rick's plan. They leave Jim, who wants to join his family as a walker, and arrive at the CDC. Rick pleads for help and the door opens.
In a flashback, Shane genuinely attempts to rescue Rick from the hospital but mistakenly presumes him dead and flees. In the present, Shane gets drunk and tries to explain this to Lori, but sexually assaults her when she resists. The group enters the CDC and meet Dr. Edwin Jenner, the only scientist left. Jenner reveals the brain scan of an infected patient, dubbed TS-19, showing the disease to be incurable. Jenner locks the group inside and reveals that the building will self-detonate. After lo
While Siesta convalesces, Alicia takes on the role of substitute detective and seeks the Eye of Sapphire, with Kimizuka’s assistance. When at last Siesta recovers, recovered, the three celebrate, but this celebration takes an unexpected turn.
Siesta has recovered and is eager to press forward with pursuing the serial killer and SPES. Alicia, however, insists on being involved, and as the two clash and sparks fly, the mystery of Alicia's identity comes more sharply into focus.
In an attempt to rescue Alicia, Siesta, Kimizuka, and Char set off to confront Hel and SPES on their home ground. There, they encounter one alarming surprise after another and come to realize that with SPES, nothing is as it seems.
Saikawa, Natsunagi, and Kimizuka set off on a cruise together, during which Kimizuka unexpectedly encounters a former acquaintance. It turns out that something precious is onboard the ship, something which attracts the wrong sort of attention.
Facing off against Chameleon with Natsunagi’s life on the line, Kimizuka finds that he is not alone in this battle, with help coming in unexpected forms. But against this wily foe, Kimizuka’s allies--and his own resilience--are tested to the limits.
Siesta, returned in spirit, partners with Kimizuka in a desperate battle against an ever-changing and resilient foe. In the aftermath of this battle, the survivors carry lingering questions and doubts, and must try to find closure amongst themselves.