P. Walter Tugnut — the "P" stands for Pickles — has spent years doing the responsible thing: stockpiling weapons, canned goods, and enough beer to last through the apocalypse in a beat-up RV parked outside an abandoned factory. When the factory wakes up and starts producing killer robots on its own, Walter does not panic. He starts the RV. Armed to the teeth and fueled by righteous indignation, Walter hits the road on a robot-killing rampage, committed to saving humanity from the machine uprising he always knew was coming.