In these very early days of modern VR, we are truly blessed that experiences like Zero Days are coming to us completely free. Powerful experiences like Zero Days VR can show just how impactful virtual reality can be as a medium. Scatter's award-winning documentary takes full advantage of full motion video, computer graphics and 3D audio to deliver a tour-de-force educational experience about the Stuxnet virus that crippled some of Iran's nuclear facilities back in 2010. This VR experience is longer than most that I have experienced, and it might have been better served,  had they delivered it in separate chapters, but it's so compelling and wonderfully demonstrated, that the viewer can't help but see the experience all the way through. Oculus, Scatter and Participant Media need to be commended on such a powerful piece.