In modern London, Riley is helped by Chevron Savano, a nineteen-year-old FBI agent sent to London as punishment after a disastrous undercover, anti-terrorist operation in Los Angeles. Together Riley and Chevie must evade Garrick, who has been fundamentally altered by his trip through the wormhole. Garrick is now not only evil, but he also possesses all of the scientist's knowledge. He is determined to track Riley down and use the timekey in Chevie's possession to make his way back to Victorian London where he can literally change the world.