A banker, linguist, and demolitions expert who has successfully infiltrated German intelligence, FBI Special Agent Thomas Cochrane is handpicked by Roosevelt for an impossible mission: to find Hitler's spy before he carries out a plan that will remove the president from office at a critical moment in the century's history.

Inspired by her research for the hit podcast Ultra, Rachel Maddow charts the rise of a wild American strain of authoritarianism that has been alive on the far-right edge of our politics for the better part of a century. Before and even after our troops had begun fighting abroad in World War II, a clandestine network flooded the country with disinformation aimed at sapping the strength of the U.S. war effort and persuading Americans that our natural alliance was with the Axis, not against it.

It is 1968, one of the most tumultuous years of the 20th century. Frank Cooper, a former star investigative reporter now writes obituaries for a popular New York City tabloid. He hears the confession of a dying man named Leonard Rudawski, a former American diplomat, who bitterly questions the fate of Pavel Lukashenko, a would-be Soviet defector in Paris in 1965. Lukashenko promised to expose the espionage secret of a generation if he could get to the West. But the defector, code named “Firebird,” vanished.

It is early 1950, the midpoint of the 20th century. Joe McCarthy is cranking up his demagoguery and Joseph Stalin had intensified the cold war. In Washington, J. Edgar Hoover's FBI is fighting a turf war with the newly founded Central Intelligence Agency. Harry Truman is in the White House, trying to keep a lid on domestic and foreign politics, but the crises never stop. It should be a time of peace and prosperity in America, but it is anything but.

During intermission at the famed La Fenice opera house in Venice, Italy, a notoriously difficult and widely disliked German conductor is poisoned—and suspects abound. Guido Brunetti, a native Venetian, sets out to unravel the mystery behind the high-profile murder. To do so, he calls on his knowledge of Venice, its culture, and its dirty politics. Along the way, he finds the crime may have roots going back decades—and that revenge, corruption, and even Italian cuisine may play a role.