Caleb triggers the Doomsday Bunker System as the world collapses. In Sunset Hills, he uses a welder and modified combine to construct a mechanical farm. While humanity battles zombies and famine, he feasts inside a bulletproof greenhouse growing antiviral wheat. Hoarding supplies and raising walls, he gathers elite survivors. Caleb transforms the farm into a steel fortress armed with heavy weaponry and Titan Mechas.
