The History Keepers embark on their third adventure, and this is the most explosive one yet! The time-travelling agents voyage from Shakespeare's England to Imperial China in pursuit of their most villainous foe yet, Xiang Xi, whose aim is to decimate the population and destroy the world's trade links. Jake, Nathan, and Topaz must join forces with international agents in order to prevent mayhem on a global scale. And at the heart of the battle lies the key to a long-lost family member - will Jake find his brother after all this time? The past is in danger - only Jake Djones can save it!