Next airing Fri Mar 23, 11 p.m. ET

Vietnam POWs: McCain & Brace

As the longest POW in Vietnam history, Ernie Brace likely endured more than any other POW during the war. Held for almost eight years, he faced capture, starvation, sickness, torture, solitude and desperation. After three-and-a-half years, Brace was transported from the jungle to the infamous prison in Vietnam dubbed the 'Hanoi Hilton,' and finally heard the voice of another American: Lt. Cmdr. John McCain, a Navy pilot shot down over Hanoi.