There are more than a million caregivers looking after children every day in the United States.

Who is looking after them? Crime Watch Daily met up with a self-defense expert who's now teaching a class specifically geared to the men and women in charge of caring for kids.

Every parent's nightmare, every nanny's single greatest fear: Having someone else's child snatched away or harmed under their watch.

Nannies are fighting back. Nanny Be Safe is a new self-defense course designed to educate and empower the people entrusted to watch over our precious children.

Leading the charge is Jarrett Arthur, a world-renowned self-defense expert and a black-belt in Krav Maga, and Jeremiah Hart, a military man with a history in law enforcement. His specialty is stopping active shooters.

The principles of Nanny Be Safe are rooted in Krav Maga, a self-defense system developed by the Israeli Defense Forces, but modified for super-busy nannies.

Step One: Prevention. This means put down the cellphone and open up the eyes.

Step Two: Avoidance. If something feels doesn't feel right, take action and don't be afraid to speak up.

Step Three: What to do in a worst-case scenario.

"What parts of my body can I use as a weapon to fight back with? Elbows, heel of palm, knee, fingers and thumbs."

Every skill teaches nannies how to ward off a bad guy, even with a child in tow.

Jarrett says when all else fails, go for the most painful targets: "Eyes, nose, throat and groin."

Nanny Be Safe also recommend families have a safety plan in place, practice safety drills with kids in a playful manner, and have a special code word that only parents, children and nannies know.