Flint Hammerhead, a prehistoric caveboy, was petrified alongside his father, Rocky Hammerhead, during a clash with the antagonist Petra Fina over the Time Shifter Getalong—a creature whose harmony-inducing powers she sought to exploit. Preserved as fossils until unearthed in the 25th century by siblings Sarah and Tony Goodman, they were revived by the siblings’ uncle, Dr. Bernard Goodman. While Flint regained his full form, Rocky became a sentient stone slab, later shaped into an axe imbued with a fossilization beam. This weapon became Flint’s key armament in battles, retaining Rocky’s consciousness to offer tactical and emotional guidance.

As a member of the Time Police, Flint traverses history to reclaim Time Shifters—magical creatures scattered by the Dark Lord, which mutate into destructive Con forms when corrupted. Restoring them demands cooperation, a task Flint tackles using raw strength and Rocky’s insights. However, his prowess wanes drastically when hungry, a vulnerability that parallels certain interdimensional counterparts.

The axe-shaped Rocky serves dual purposes: a combat tool capable of fossilizing or reviving non-malicious entities and a bridge to his father’s wisdom, anchoring Flint amid temporal chaos. Allies Sarah and Tony bolster his straightforward tactics with strategic ingenuity, emphasizing teamwork against adversaries.

Flint’s clashes with Petra Fina and her Dark Lord ally escalate into temporary alliances to thwart existential threats, such as the Dark Lord’s bid to conquer the Land of Time. Even after pivotal victories, Flint relentlessly pursues Petra, driven by duty and an unyielding bond with his transformed father. His journey weaves perseverance, loyalty, and adaptation across epochs, balancing primal instincts with futuristic challenges in a timeless struggle for harmony.