The Johnson family, consisting of Mr. and Mrs. Johnson and their two kids, Jim and Lily, never imagined their weekend hike in the woods would take such a wild turn. As they stumbled upon an old, mysterious cave hidden beneath a waterfall, a time machine awaited them, pulsating with a warm, inviting glow. Curiosity got the better of them as they stepped inside, only to find themselves transported back to the prehistoric era. In front of them, a majestic T-Rex roared, causing Mrs. Johnson to faint in shock. But to their surprise, Mr. Johnson, adrenaline pumping, leaped onto the back of a nearby Triceratops, riding it like a cowboy in the Wild West. Now, the Johnsons must navigate the dangerous land of dinosaurs while trying to find a way back home.