Part one of two. Dr Phil Currie goes on a quest to prove that Tyrannosaurus rex were more intelligent and far more dangerous than ever imagined, and that they hunted in deadly, killer packs. With his groundbreaking new findings and extensive research, the palaeontologist and dino hunter challenges the very foundations of traditional dinosaur theories.
Part two of two. Phil Currie explores the hunting behaviour of the Tyrannosaurus rex, arguing the creatures worked in packs and tore their prey to shreds in frenzied attacks. Dr Currie journeys to some of the most remote and inhospitable places on the planet in search of evidence that may reveal how just how brutally the tyrant lizard king lorded over their domain, and why their reign of terror lasted so long.