Walking with Dinosaurs
Death of a Dynasty
S1 E6:
It is 65 million years ago, and as the Cretaceous period draws to a close, the world is poisoned by massive volcanic activity. A mighty Tyrannosaurus battles to rear her young, but her efforts are in vain. A giant comet heading for Earth is destined to mark the end of the age of the dinosaurs and to transform life on earth forever.