Kirk Johnson

Ranger Megan Patel loses her brother, Daniel, under mysterious circumstances. Struggling to understand how he died, she finds herself alone, venturing into the vast pine forest. However, as she follows the trail of her brother into the woods, the trees begin to change and shift around her. Soon Megan arrives in places without any recollection of how she got there. Almost as if something is pulling her deeper into the woods. Something dark and dangerous, that Megan might not be able to escape.

Travel back 66 million years ago when a meteor struck the Earth, wiping out three-quarters of all life on the planet. What happened in those first hours? Why did some creatures survive while nearly all others perished? Using computer graphics and real-world recreations, National Geographic reveals the likely effects of the catastrophic impact that changed the world forever and examines who won, who lost, and why.

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.