Littlefoot, Cera, Spike, Ducky and Petrie are back in an enchanting new, feature-length adventure from the beloved The Land Before Time series! Littlefoot has witnessed an amazing sight: a "stone of cold fire" that fell through the night sky and landed somewhere in the Smoking Mountains. But Littlefoot is the only one in the Great Valley who saw the stone and he can't find anyone who believes him. Petrie's long-lost uncle, Pterano, offers encouragement, but Petrie and his friends don't know that the shady Pterano has his own reasons for wanting to find the stone, which he believes has special powers. Searching for the truth, the young dinos venture out into the Mysterious Beyond... and enter a thrilling adventure beyond their imaginations! With beautiful animation, delightful songs and an unforgettable lesson about the value of friendship, this is a film families will cherish.