In this episode of History Date Night, Justin and Jennie cover May 16th through 18th. This episode is short in days but enormous in consequence. The German breakthrough stops being a hole in the French line and becomes something nobody can stop. Churchill flies to Paris and learns how bad things really are.

This episode also has a furious confrontation between two German generals that nearly costs Guderian his command at the exact moment he's winning the war for his country, Charles de Gaulle leading the only real French counterattack of the entire campaign, the French Prime Minister reshuffling his government, and an American spy scandal breaking open inside the London embassy.