How It Really Happened S06E03 - Escape from Dannemora Part 1: Killers on the Loose

Two dangerous killers break out of one of New York State's toughest prisons. Convicted murderers Richard Matt and David Sweat cut through steel walls, crawl through steam pipes, and snake their way through a maze of tunnels on their way to freedom. When authorities discover the details of their elaborate escape - there are more questions than answers. Who are these men? How did they mastermind their plan? And can they capture them before they kill again?