"World War II: Behind Closed Doors – Stalin, The Nazis and the The West" on PBS is a watershed event, worthy of high hosannas.

Could it be the Gauleiters of the Left – who assiduously guard the real truth about the USSR – have been caught napping? Or is the series "World War II: Behind Closed Doors – Stalin, The Nazis and the The West" the dawning of a new era finally heralding long-ignored revelations about the human carnage under the Soviet communists? The program is such a surprise it takes a moment to believe it is really happening. Having dedicated two decades to exposing to the public in columns – and via the Raleigh Spy Conference – that the real story of the 20th century is lying there available in the record, I can hardly contain myself.

And it's not too late to catch up and enjoy this monumental event. Episode One of Three aired Wednesday evening May 6; the program continues for two more consecutive Wednesday evenings May 13 and 20. Tune up your DVRS and TIVOS for history in the making, and a truly absorbing experience. The production values are excellent, featuring a mélange of docudrama, documentary and actual film and photographs. The actors create such life-like characters you will think Stalin was rolled out of his grave to play the part. In the first episode, Ribbentrop and Molotov – the foreign ministers who hacked up Poland and Eastern Europe on behalf of Stalin and Hitler – exude evil personified as they meet and greet, surrounded by other diplomats, military officers, personal aids and servants.

It is a stunning visual accomplishment presenting the best production values I've ever seen on television. Period automobiles deliver the players – gussied up in authentic Nazi and Soviet uniforms – to Kremlin dining rooms where they dine in Czarist splendor, with footmen and butlers delivering steaming plates of haute cuisine; or take care of business in offices and conference rooms outfitted to the smallest detail in mid-century furnishings. Maps and newsreels and lucid photography literally draw viewers into the moments that signal death for thousands among the millions who perished at the hands of what even Hitler called an "international guild of criminals."

Hitler and Germany and the Nazis are also served up on their home turf, while the British, and later the Americans, are introduced for their roles in the upcoming episodes. Tantalizing previews intimate the reaction to Stalin as the war wears on, most tellingly a scene dramatizing FDR slamming down a report of Soviet atrocities, exclaiming he refused to believe Stalin capable of mass murder. This is a telling scene, as Roosevelt will never remove the stain of his inability to see Stalin for what he was: an evil and heinous tyrant personally responsible for the death of at least 20 million innocent civilians.

The massacre of 17,000 Polish military officers held prisoner in the Katyn Forest in occupied Poland is presented in chilling detail. Night after night, several hundred are removed from three different prisons and trucked to secret facilities where they are met by Soviet executioners draped in leather aprons and gloves for the evening's work – a pistol shot to the back of the head. But Stalin and his gang are just getting started, as we will learn in future episodes. And there is, after all, a war going on, but with a twist. Hitler, after arranging the Ribbentrop-Molotov agreement to destroy Poland – and allowing secret codicils for the parties to control Eastern Europe – wheels around and attacks his erstwhile ally.

Stalin is literally stopped in his tracks, unable to believe Hitler's treachery until the Panzers arrive at the door. He hides out in his dacha awaiting the Politburo to have him shot for being wrong about his pact with Hitler. Instead, they ask him to return and save Mother Russia. A Russian winter and the aid of the Western Allies help him succeed, along with the ruthless practice of shooting deserters or shirkers on the front lines. The depiction of these scenes, amidst the newsreels of other warfare on several fronts, is riveting television.

Meanwhile, back in the USA, thousands of Americans happily signed on as agents and spies for their hero Stalin. The Communist Party United States (CPUSA) vehemently denied any connection with the Soviet Union. Yet in revelations from formerly classified documents, scholars John Haynes and Harvey Klehr have proved that Moscow ran the American party and its cells and agents of influence in every detail. During the one-year Polish accommodation between Stalin and Hitler – the man the Communist Party hated the most – it was tough to justify the policies of the Kremlin. Yet the CPUSA soldiered on without much popular success. But after the Germans attacked the USSR, the CPUSA was in full throat and gaining converts while praising their maximum leader to the rafters. They knew Stalin was a mass murderer, but stayed with him and the manifestos of the communists into the 1980s until the entire evil and corrupt edifice collapsed at the end of 1991.

How does history depict this despicable state of affairs? It hasn't had a chance to. The keepers of the communist flame in the US won the decisive battles by discrediting any attempt to expose the truth about the communists – from Whittaker Chambers to Joe McCarthy. Relying on agents and fellow travelers in government, the media and on campus, American communists and sympathizers won the hearts and minds of the intellectual community in the West. KGB political agents also used the United Nations and a host of non-government organizations to perpetuate the big lie about the USSR. Even after the collapse of the "evil empire," they continue to fight for their tainted cause, stating that communism is still the best form of government, even if the USSR had a few problems – like the murder of millions.

That's why the series on Stalin and the Nazis and the West is a watershed event, worthy of high hosannas. The truth is out and it is based and verified by unassailable recently declassified documents. I don't think the Left can put this series back in the bottle, but we know they will try.