In a world where dragons must hide from humanity, a young silver dragon named Firedrake, voiced by Freddie Highmore, embarks on a daring quest to find the mythical haven known as the Rim of Heaven. Joined by his loyal, talkative brownie companion Sorrel, played by Nonso Anozie, and a resourceful orphaned boy named Ben, voiced by Thomas Brodie-Sangster, their journey becomes a breathtaking race against time. They are relentlessly pursued by Nettlebrand, a fearsome golden dragon hunter with a mysterious past, chillingly brought to life by Patrick Stewart. This animated family adventure soars with themes of friendship, courage, and finding one's true home, as the unlikely trio navigates magical forests and ancient secrets, learning that the greatest treasure isn't a place, but the bond they forge along the way.