Apocalypse: I have a super fortress in advance

Ray, a former FBI ace, has been living quietly as a mechanic so he can stay close to his family. After his greedy wife and powerful elites betray him and leave him ruined, he goes into hiding with his adopted daughter in a top-grade bunker. When the zombie apocalypse breaks out, the privileged survivors above collapse into chaos, and Ray's daughter becomes infected. To save her, he must take up his old identity as the Silent Reaper and begin building an empire in the ruined wasteland.