In the conclusion of the four-part story "The Romans," Ian (William Russell) and Barbara (Jacqueline Hill) are at last reunited after suffering the ignominy of being Roman slaves. As the conspirators set their assassination plans in motion, the Doctor (William Hartnell) must act quickly to save Emperor Nero (Derek Francis). This episode proposes to solve the mystery as to who really set Rome on fire. Originally telecast on February 6, 1965, "Inferno" was written by Dennis Spooner. ~ Hal Erickson, Rovi