Valley of The T-Rex World, 9pm More than four metres tall and 12 metres long, T-Rex has traditionally been viewed as a six-tonne killing machine. However, evidence seems to be pointing to T-Rex the scavenger, rather than the predator. No one likes this idea. In fact, T-Rex the predator has never been more popular. Challenging the deadly reputation of this dinosaur is nothing less than heresy but in the badlands of Montana, Jack Horner is unearthing a mystery. We accompany the maverick paleontologist to remote dig sites, to labs where the fossils are prepared and studied, and to the museums where the skeletal remains are displayed. Horner travels to the 'Valley of the T-Rex', a fossil hunter's paradise where more T-Rex skeletons have been uncovered than any other place. Not only does Horner find more excellent specimens in this remote location, but he also uncovers evidence that leads him to question the conventional theories of T-Rex behaviour.