Pirates of the Third Reich

S6 E15: When the body of an emaciated, bald, and branded young woman is found half-buried in the desert outside of Vegas, Grissom teams up with Lady Heather and discovers the girl's death seems to be linked to a clinic where doctors performed experiments for sleep deprivation. The mystery deepens when someone in the clinic took advantage of some patients and used them in Nazi-esque scientific experiments on humans for race purification.