When he finds a powerful crystal, Professor George Challenger gains the powers of a God, putting himself and the other explorers in great danger.

Deep in the jungle, Marguerite, Challenger and Malone come upon a half-buried, mummified corpse. They are shocked when it shows signs of life. They learn the would-be corpse, Ramses, is Egyptian royalty. He weaves a tale about a wonderful kingdom with untold riches and how he was to become king. He then enlists our heroes in a plan to reclaim the throne he says has been stolen from him by his sister, Nefertiti. After agreeing to help, the three discover there is more to the dispute than Ramses is revealing. He rules with an iron fist, enslaving his former enemies. He blinds his sister, and leave her to die. Marguerite, Challenger and Malone help her escape. The adventurers decide they must defeat Ramses by convincing the true heir, Nefertiti, to accept the responsibility of rule, and helping her regain control. Meanwhile, Summerlee is relentlessly pursued by a T-Rex after she mistakenly believes him responsible for the death of her babies. Roxton and Veronica must help their friend or