A vintage gay comic story unfolds as a young, muscular scientist discovers an ancient artifact in his lab. Summoning a hulking, hairy caveman, he's soon overwhelmed by the primal hunk's massive, veiny cock. The caveman, captivated by the scientist's intelligence and eagerness, spanks his firm ass, leaving red handprints. They move to a lush, outdoor setting, the scientist's scientific curiosity replaced by primal desire as he eagerly takes the caveman's cock, feeling the thick veins pulse against his tongue. The caveman, enjoying the scientist's eagerness, fucks him rough and raw, claiming his tight, virgin ass under the ancient, alien sky.