In the wake of Earth’s greatest extinction event, a new creature rises that will change the planet forever: the first dinosaur. When young dinosaur expert Dex discovers a mysterious baby that may hold the key to this ancient mystery, he sets off on an epic road trip adventure with his older sister Dana and his fearless best friend Kayla. Together, they journey across spectacular landmarks, uncovering clues that could rewrite the origins of dinosaurs. As Dex races to solve the mystery of what makes a dinosaur a dinosaur, he discovers that the strongest force connecting the past and present is family. Funny, thrilling, and filled with wonder, The First Dinosaur is a cinematic family adventure millions of years in the making.