When a female soldier charges a commanding officer with sexual assault, Lightman is brought to Fort Meade to find out if there’s any truth to the accusation. Meanwhile, the Lightman…

When clues in a murder implicate Castle and Beckett’s nemesis, Dr. Kelly Nieman, Castle is called in to consult on the case.

The BAU is called to investigate a series of deaths in Virginia suspected by the Center for Disease Control to be caused by bio-terrorism; Garcia visits her stepbrother to take…