When the magic powers of The Tablet of Ahkmenrah begin to die out, Larry Daley spans the globe, uniting favorite and new characters while embarking on an epic quest to save the magic before it is gone forever.

A lowly pencil pusher working for MI7, Johnny English is suddenly promoted to super spy after Agent One is assassinated and every other agent is blown up at his funeral. When a billionaire entrepreneur sponsors the exhibition of the Crown Jewels—and the valuable gems disappear on the opening night and on English's watch—the newly-designated agent must jump into action to find the thief and recover the missing gems.