In a world devastated by a deadly virus that was unleashed 28 years ago, humanity has begun to rise from the ashes. While the once-vibrant cities have turned into ruins, small groups of survivors struggle to understand how to rebuild what remains. The story follows Ellie, a young girl born in an underground shelter who has never known the outside world. After losing her father in an attack by "infected"—the crazed carriers of the virus—Ellie embarks on a journey to find her mother, whom she believes is alive in a safe zone on the other side of devastated London.
As she ventures into this post-apocalyptic landscape, Ellie joins a diverse group of survivors: a cynical ex-soldier, a scientist searching for a cure, and a child who has lost his innocence. Together, they face not only the infected but also human factions that have emerged, willing to do whatever it takes to gain control of the few remaining resources.
With tension rising and the threat lurking at every turn, Ellie begins to discover not only the brutality of the new world around her but also her own strength. Every decision she makes could mean life or death, and she will ultimately understand that the real challenge is not just to survive, but to find purpose in a world that seems to have forgotten it.