Flint wakes up from being a fossil in the 25th century and immediately has to save all of human history. No training montage, no hesitation, he's grabbing a time device and jumping into ancient Rome with his newly unfrozen dad, a kid named Tony, and Sara tagging along because someone has to actually know what's happening. Every episode is a different period getting corrupted by these ticking-bomb devices, and Flint has to improvise his way through it with nothing but stubbornness and whatever allies he finds in that century. The show never takes itself seriously enough to slow down, which means the comedy lands between genuine stakes. It's built for anyone who wants adventure that moves too fast to overthink itself.

In the 25th century, a dark lord has seeded history with time-devices that threaten to damage it beyond repair. Flint and his father once lived in prehistoric times, until both were turned into fossils. After they are found, Flint is returned to his original form. Joined by his father, a boy named Tony and a girl named Sara, he travels through time to gather the devices and bring them back to the land of time, saving history. The show mixes adventure, comedy, fantasy, mystery and science fiction.