Watch Grand Knighthawk Infiltrating The KKK Online Free. This documentary that takes viewers inside one of the world’s most sinister secret societies — the Ku Klux Klan. Based on an award-winning investigative AP series, the true-crime documentary captures the infiltration of the klan in northern Florida by a former Army infantryman named Joe Moore and includes exclusive new interviews with the FBI agents who oversaw the operation and exposes systemic corruption.