Part 10/11:
As the epilogue unfurls, the siblings discover the grim truth that the virus has spread far beyond Britain’s shores, threatening humanity at large. Their efforts to seek refuge culminate in a heart-stopping helicopter escape, but survival comes at a cost—the realization that their world has irrevocably changed. Tampering with the unspoken bonds of family, loyalty, and the will to survive, the survivors endeavor to retain their humanity amid chaos.