Missing in Alaska is a deep dive into the mysterious disappearance of Congressmen Hale Boggs and Nick Begich, whose plane vanished in Alaska in 1972. Despite the largest search in American history, no sign of the men ever surfaced. Officials blamed ice, and a nation consumed with Watergate and Vietnam quickly moved on. Two decades later, a murderer and bomber with mafia ties made a startling claim to the F.B.I.: The plane was bombed. Was he lying? Journalist Jon Walczak, who has investigated the case since 2011, travels from Arizona to the Arctic Circle trying to uncover the truth.