The only son of wealthy widow Violet Venable dies while on vacation with his cousin Catherine. What the girl saw was so horrible that she went insane; now Mrs. Venable wants Catherine lobotomized to cover up the truth.
English General Charles George Gordon is appointed military governor of Anglo-Egyptian Sudan by the Prime Minister. Ordered to evacuate Egyptians from the Sudan, Gordon stays on to protect the people of Khartoum, who are under threat of being conquered by a Muslim army.
Archaeologists discover the final resting place of a boy king, removing the remains to be exhibited in a museum. By disturbing the sarcophagus they unleash the forces of darkness. The Mummy has returned to discharge a violent retribution on the defilers as the curse that surrounds the tomb begins to come true. One by one the explorers are murdered until one of them discovers the ancient words that have the power to reduce the brutal killer to particles of dust.
