Castle The Human Factor

Castle and Beckett work the murder case of a government whistle-blower killed by a military drone., Castle and Beckett investigate when it appears a homicide has been perpetrated by a military robot., A whistle-blower is killed and the crime scene gets sealed by Homeland Security. As Castle and Beckett continue to pursue the case, they learn that the cause of death was not a car bomb but a missile from a military drone., The duo investigate how a military robot killed a man.