While a stone age campaign based on Alley Oop would be more like modern-day living with a stone age backdrop, a campaign more like Og Son of Fire would deal with more realistic issues, like hunting to survive, and navigating threats like superstitious people and the constant threat of stoning.
Don Dixon falls into a trap; the bridge is rigged so that the ropes can be pulled taut enough to snap (mechanically, from a remote distance), dropping anyone on it into the water below (it looks to me like a 30' drop). Not sure what the bad guys mean by "microscope" here, unless they meant "television"...
Elks have not yet been statted for H&H, but would likely have 5 HD.
(Scans courtesy of Digital Comic Museum)