The year is 1585.
"While working on a powerful new weapon for England, the country's first secret agent John Dee finds himself threatened from all sides. First, his secret plans are stolen, then his son is kidnapped by a vengeful enemy from his past. At the same time, Dee's wife, Jane, is sent by Queen Elizabeth I to console her cousin, Mary, Queen of Scots, whom court advisors are determined to try for treason.