In the post-apocalyptic wasteland of a nuked Earth, super mutants like Krag roam the irradiated ruins. Once a human scavenger mutated by the Forced Evolutionary Virus, Krag now wanders the badlands, defending fragile settlements from raiders and feral ghouls. Scarred from endless battles, he seeks purpose beyond his monstrous form, forging uneasy alliances with survivors while haunted by fragmented memories of his human life.