Some hundred million years ago, crocodiles were the ruling T. rexes of the waters. They galloped on land, ambushed prey at the river's edge--even terrorized dinosaurs. These swift predators evolved through the ages into the modern crocs we know today. Now, armed with newly discovered prehistoric crocodile bones, Dr. Paul Sereno is determined to bring the ancient creatures to life--and tell their fantastic untold story. Learn about a croc that pursued...

A major discovery shows how life came back after an asteroid wiped out the dinosaurs. With exclusive access to a fossil trove from the key first million years after impact, the film charts the rise of a new living world from the ashes.