Cyborg guardian runner

 

A cyborg guardian and his spikewolf patrol the grasslands of the Midwest. Up armoured androids were often used to protect small farming communities from raiders. 

Powered by radioactive decay diamond batteries and organic matter processing intakes, they could operate autonomously for weeks before requiring maintenance. AI systems took over during sleep cycles, and with infrared, motion detectors and detachable drone 'flies', they were rarely taken by surprise.

Roving bands of opportunistic, predatory nomadic raiders were an ongoing problem for settled agrarian community, most of which lacked the ability to match their mobile warfare tactics. 

This issue became acute as ammunition stockpiles ran out.