A few days after the glorious birth of her son, Littlefoot’s mother soon discovers a the orphaned fastrunner (oviraptor) and only survivor of her fallen family. Though reluctant at first, her parents agree to take her in and raise her, soon naming her Digger. Despite their different species, Littlefoot and Digger get along well in the dyling lands on their journey to the paradise called the Great Valley. Suddenly, the Great Earthshake hits the land and divides families. In the midst aftef rescuing her children and a lone threehorn child from a sharptooth onslaught, Lotus finds herself seperated from her two children and parents, but no memory of either. Her children on the opposite side of the chasm suffer the loss of ever having Lotus in their lives. They vaguely remember their one goal. Join Digger and Littlefoot as they unite with other dinosaurs of other kinds and survive the ravaged lands to reach some paradise to reunite with their families. And who is thus reappearing dino?
3 parts