History Channel covers Claus von Stauffenberg, the German who put a hit on Adolf Hitler

This compelling History Channel documentary on the abortive 1944 plot by dissident German military officers to kill Adolf Hitler may strike some viewersas the opening act for the forthcoming movie in which Tom Cruise plays plot leader Claus von Stauffenberg.
It's a lot more than that.

Built on extensive interviews with historians and surviving children of several plotters, "Valkyrie: The Plot to Kill Hitler" probes the real lives of the officers who gambled they could assassinate Hitler and lost.