Keira Knightley, Nicholas Braun, Dr. Becky Kennedy

Some of the most amazing, eye-opening and downright scary paranormal videos from around the world are featured as a panel of experts break down the footage and analyze what exactly the eyewitnesses captured.

What would happen to planet earth if the human race were to suddenly disappear forever? Would ecosystems thrive? What remnants of our industrialized world would survive? What would crumble fastest? From the ruins of ancient civilizations to present day cities devastated by natural disasters, history gives us clues to these questions and many more in the visually stunning and thought-provoking special, Life After People.

Set in the middle of the jungle, "The Challenge: War of the Worlds 2" returns to a classic team format; 14 Brits will battle it out against 14 Americans for their share of the $1 million-dollar prize.

Three celebrated food experts put the latest group of contestants through a series of challenging elimination rounds and turn one home cook into a culinary master.

In the midst of an international crisis, a career diplomat lands in a high-profile job she's unsuited for, with tectonic implications for her marriage and her political future.