Dan meets the mummies of Tutankhamun's parents at the Egyptian Museum in Cairo, and discovers that they were actually brother and sister. CT scans reveal how this incestuous relationship could have been responsible for Tutankhamun's poor health.

The pharaoh sustains an injury in 1323 BC that results in his death; Dan discovers a break in Tutankhamun's skeleton; John visits Howard Carter's house.

Dan discovers a series of anomalies in Tutankhamun's burial, and spots that the faces on his coffins and canopic jars do not match that of the famous golden mask; Raksha looks at Seti's tomb, which shows how hurried Tutankhamun's was in comparison.