Host Bruce Feiler embeds with a group of active duty and retired U.S. military, wounded in Afghanistan, Iraq and other American wars, as they travel to the Catholic shrine of Lourdes in southwest France in search of healing. More than five million pilgrims visit this shrine to the Virgin Mary every year to bathe in the waters of a spring that Catholics believe has miraculous powers. The wounded warriors from America join 30,000 other military and their families from 35 different nations on an International Military Pilgrimage that's now in its 55th year. While only half the American soldiers are Catholic, all hope that Lourdes can provide spiritual and emotional healing beyond the treatment they've already received for their physical wounds and disabilities.