Rachel Maddow Presents: Ultra MSNBC

The sudden and shocking suicide of a popular Democratic Senator, inside his Senate office, stuns the country and the nation’s capital. And soon, a series of bombshell revelations concerning the circumstances around the senator’s death will start to reveal a web of troubling forces at work on the American ultra right in the post-war 1950s.

This episode contains descriptions that reference self-harm. If you or someone you know is in crisis, call or text 988 to reach the Suicide and Crisis Lifeline or chat live at 988lifeline.org. You can also visit SpeakingOfSuicide.com/resources for additional support.

The American government launches an all-out manhunt for a young American ultra-right fascist who harbors sympathy for the Nazis and who is actively peddling one of the world's most dangerous weapons. Francis Yockey’s journey -- and the government’s intense search for him -- will soon leave a mark on American politics for decades to come.

One of the most shocking incidents of World War II for Americans -- a cold-blooded Nazi massacre of surrendering American troops -- gets weaponized against the United States by surviving Nazis hoping to return to power, as well as a group of Americans sympathetic to their cause. A gruesome hoax around the massacre, cooked up by the Nazis, will soon rocket through American politics.

Elements of the American ultra right -- including the trailing ends of the America First movement -- begin taking up a strange new cause after the war... sympathy for Nazi war criminals. The surprising efforts to oppose the Nazi war crimes trials, and advocate for individual Nazis at home and abroad, will involve some of the most high-profile voices on the American right, and will jumpstart the career of one rising Republican star, Sen. Joseph McCarthy.

The U.S. government’s search for American fascist Francis Yockey picks up steam as Yockey secretly returns home to America and joins forces with the growing pro-Nazi American ultra right. With investigators continually one step behind, Yockey suddenly turns up alongside one of the country's most powerful political figures who is ascending toward the height of his powers.

As Sen. Joseph McCarthy's activities -- and his troubling connections to those on the ultra right -- are exposed in the press, Democratic Sen. Lester Hunt launches a final effort to take McCarthy on and rein in his abuses. In response, McCarthy and his allies launch a coordinated blackmail campaign against Hunt, using his own family, that will ultimately end in tragedy.