Oz Levinson is beyond excited when his family decides to spend winter vacation in England. The chance to tour London (a.k.a. James Bond's home base) and get a break from the school bullies will make this a very jolly holiday indeed. Even better, his friend Glory Goldenleaf- world-renowned spy mouse- is along for the ride. Soon though, their vacation turns into a business trip. A series of jewel thefts have left the police baffled, and Glory has her eye on some pocket-size suspects. It looks like Goldwhiskers- the richest rat in the world- and some familiar rodent villains have their paw-prints all over this. Then the rat thieves go after the big cheese: the Crown Jewels. In a race to return England's national treasures to safety, Glory Goldenleaf, international mouse of mystery, and her friend Oz are on the case!