In a new Fox News Reporting special, Benjamin Hall, the author of Inside ISIS brings us a closer look at the brutality of ISIS.

Hosted by Bret Baier, you'll also hear from a Yazidi Iraqi parliament member, Vian Dakhil, who explains that the mentality of ISIS is that if you're not a Muslim, you should be killed and your wife and daughters should be raped.

"This has happened with the Yazidis," said a tearful Dakhil in an interview with Baier.

But the horrific atrocities have not only targeted Christians in the Middle East. The Jordanian pilot who was burned alive in an ISIS video was a Muslim. 

Hall witnessed firsthand the rise of ISIS in the Middle East, and he says that the brutality of the terror army is actually much worse than people think.

He told Martha MacCallum this morning that each time he sees a new ISIS video make headlines, he wants to let people know that "there's so much more happening on the ground that you don't know about."

"In particular, the way that children are being brainwashed. The ideological training they go through that is creating a whole new generation of problems. We really need to be doing more about it," said Hall.

Hall described seeing villages where the whole male population was wiped out by ISIS, with 400-500 killed.

"When you talk to a woman who's lost 90 members of her family and and she's the last one there and she's wailing, you understand the scale of this problem."

Watch the "America's Newsroom" interview above and see details on the upcoming "Fox News Reporting" special below.

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As ISIS cuts a swath across the Middle East with unparalleled brutality, how will the world respond. And will America lead, or follow? "Fox News Reporting" shows you the damage wrought by ISIS as few have seen it, with exclusive stories and footage of the devastated families whose only mistake was being in the wrong place at the wrong time.  And, Bret Baier exclusively speaks to President Abdel Fattah el-Sisi of Egypt, a rare leader in the region who has stood up to Islamic terror, and dared call it by its name. All this and more in "Unholy War - The March Of ISIS."

Don't miss this "Fox News Reporting" special, tonight at 10p/1a ET on Fox News Channel. Re-airings on Saturday at 10p/1a ET and Sunday at 8/11p ET.