The Alcatraz Escape_ Boldest Prison Break in U.S. History _ History's Greatest Mysteries

A perfectly masterminded plot leads to the most brazen prison break in American history. With only a handful of clues left behind, the search for the infamous Alcatraz escapees continues to this day. But is it really possible they survived--and if so, where did they go? Find out in this clip from Season 5, Episode 6, "ESCAPE FROM ALCATRAZ."

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