World War 1 has begun, and Robert walks Amanda through how Alfred Hugenberg bought up the German media to make the case the the war should go on for ever, and then how he backed the Nazi party and ushered Hitler into power when that didn't go well for some reason.
Sources:

Part Two: The Fake Bomb Detector Grift That Killed Hundreds
57:32

Part One: The Fake Bomb Detector Grift That Killed Hundreds
51:23

Part Two: The Rise of the "Activist" Investor
1:11:41