He’s one of histories most hated men, millions want him eliminated, but only a few will step up and take action to end his rein of terror. From his early grab for power, to the final days of the Third Reich, new research reviles that there were at least 42 plots to kill Adolf Hitler. Who were these would be assassins, what were their methods and why was it that they all ultimately failed?

In this National Geographic documentary, directed by Jon Taylor, they retrace the steps, test the weapons and uncover surprising new information about these bold attempts to change the course of history.