时长: / 首播:2019-10-07
A caveman, Spear, returns from fishing to find his mate, son, and daughter devoured by a trio of horned Tyrannosaurus. Distraught, he contemplates suicide before resolving to take revenge. He sees the silhouette of a dinosaur and, believing it to be one of the Tyrannosaurus that killed his family, silently pursues it into a thicket. He comes face to face with the hornless Tyrannosaurus Fang, with two offsprings with her. The sight of the young dinosaurs causes Spear to back down, just as they are attacked by the horned Tyrannosaurus pack. Though Spear helps Fang kill two of them, their gargantuan alpha eats Fang's babies. Spear and Fang slay the alpha, but Fang is left distraught over the loss of her children. Spear leaves Fang and walks off alone, but is later approached by Fang, and the two decide to travel together.