Prologue
Late Cretaceous. 66 million years ago. North America.
Growing within its egg, a baby dinosaur stirred.
"Some things start out big. And some things start out small. Very small. But sometimes, the smallest thing can make the biggest changes of all."
Standing over the nest, was the unhatched dinosaur's mother, who gently nudged the egg. A Triceratops, armed with three deadly horns and a thick bony frill. She looked up at the top of the valley where a flock of birds flew overhead, briefly sniffing the air before using her front foot to gently nudge the center egg next to the others. However, her nest didn't go undisturbed as a curious Thescelosaurus had a peek in the nest. The mother Triceratops quickly shooed him away with a snort
The small dinosaur headed towards the lake, where a herd of Alamosaurus waded, The giant herbivores towering over the other dinosaurs that called this valley their home. The Thescelosaurus scurried among the sauropods' legs, chasing a flock of birds. Just as they flew out of his reach, he noticed a dragonfly, sitting on a flower. He approached the dragonfly, which immediately flew away towards a forest, which the small dinosaur was sure to follow.
The dragonfly landed on a tree root. As the Thescelosaurus approached again, it took off and landed on what appeared to be a tree stump. Suddenly, some drool landed on the tree root. The Thescelosaurus looked up and saw a set of fanged jaws opening. He bolted out of the forest as fast as his legs could carry him, letting out a panicked cry as he did so, catching the attention of the other dinosaurs.
Moments later, the huge predator smashed through the vegetation. Tyrannosaurus rex. He spotted the Thescelosaurus and decided he wasn't worth it, so his attention turned towards the larger dinosaurs, which were fleeing him, all except the mother Triceratops, who was still standing defensively over her nest. But when the T. rex came closer, she had no choice but to save herself and watch helplessly as the predator trampled her nest, crushing all but one of her eggs.
The T. rex continued chasing the herd and spotted a tiring Edmontosaurus, struggling to keep pace with the others. All the hadrosaur could do was look into his pursuer's eyes as he gained on him. As soon as the T. rex was running right next to the Edmontosaurus, he bit down on his neck, crushing his windpipe and spinal cord in one chomp. The unfortunate dinosaur let out a feeble gasp of air and collapsed. The T. rex roared in victory and began to feast.