Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
3 Episodes 0 - 2020
Episode 1
Wed, Jun 17, 202053 mins
Discover why rocks are so important when looking for fossils.

Episode 2
54 mins
Emily Graslie cruises into the Cretaceous, where astonishing creatures like T. rex dominated the planet. But what happened to these tremendous animals? And how did other life forms survive an apocalyptic asteroid that crashed into Earth 66 million years ago?

Episode 3
55 mins
As she drives closer to the present day, Emily Graslie discovers surprising truths written in the fossil record. Meanwhile, the scientists studying our planet's past are revealing clues about its future.
